diff --git a/java/examples/Books/Processing Handbook/Units 00-17/00 Using Processing/_01/_01.pde b/java/examples/Books/Processing Handbook/Units 00-17/00 Using Processing/Ex_01/Ex_01.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/00 Using Processing/_01/_01.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/00 Using Processing/Ex_01/Ex_01.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/00 Using Processing/_02/_02.pde b/java/examples/Books/Processing Handbook/Units 00-17/00 Using Processing/Ex_02/Ex_02.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/00 Using Processing/_02/_02.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/00 Using Processing/Ex_02/Ex_02.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/00 Using Processing/_03/_03.pde b/java/examples/Books/Processing Handbook/Units 00-17/00 Using Processing/Ex_03/Ex_03.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/00 Using Processing/_03/_03.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/00 Using Processing/Ex_03/Ex_03.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/00 Using Processing/_04/_04.pde b/java/examples/Books/Processing Handbook/Units 00-17/00 Using Processing/Ex_04/Ex_04.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/00 Using Processing/_04/_04.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/00 Using Processing/Ex_04/Ex_04.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/00 Using Processing/_05/_05.pde b/java/examples/Books/Processing Handbook/Units 00-17/00 Using Processing/Ex_05/Ex_05.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/00 Using Processing/_05/_05.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/00 Using Processing/Ex_05/Ex_05.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/00 Using Processing/_06/_06.pde b/java/examples/Books/Processing Handbook/Units 00-17/00 Using Processing/Ex_06/Ex_06.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/00 Using Processing/_06/_06.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/00 Using Processing/Ex_06/Ex_06.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/00 Using Processing/_07/_07.pde b/java/examples/Books/Processing Handbook/Units 00-17/00 Using Processing/Ex_07/Ex_07.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/00 Using Processing/_07/_07.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/00 Using Processing/Ex_07/Ex_07.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/00 Using Processing/_08/_08.pde b/java/examples/Books/Processing Handbook/Units 00-17/00 Using Processing/Ex_08/Ex_08.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/00 Using Processing/_08/_08.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/00 Using Processing/Ex_08/Ex_08.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/01 Structure 1/_01/_01.pde b/java/examples/Books/Processing Handbook/Units 00-17/01 Structure 1/Ex_01/Ex_01.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/01 Structure 1/_01/_01.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/01 Structure 1/Ex_01/Ex_01.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/01 Structure 1/_02/_02.pde b/java/examples/Books/Processing Handbook/Units 00-17/01 Structure 1/Ex_02/Ex_02.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/01 Structure 1/_02/_02.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/01 Structure 1/Ex_02/Ex_02.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/01 Structure 1/_03/_03.pde b/java/examples/Books/Processing Handbook/Units 00-17/01 Structure 1/Ex_03/Ex_03.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/01 Structure 1/_03/_03.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/01 Structure 1/Ex_03/Ex_03.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/01 Structure 1/_04/_04.pde b/java/examples/Books/Processing Handbook/Units 00-17/01 Structure 1/Ex_04/Ex_04.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/01 Structure 1/_04/_04.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/01 Structure 1/Ex_04/Ex_04.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/01 Structure 1/_05/_05.pde b/java/examples/Books/Processing Handbook/Units 00-17/01 Structure 1/Ex_05/Ex_05.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/01 Structure 1/_05/_05.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/01 Structure 1/Ex_05/Ex_05.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/01 Structure 1/_06/_06.pde b/java/examples/Books/Processing Handbook/Units 00-17/01 Structure 1/Ex_06/Ex_06.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/01 Structure 1/_06/_06.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/01 Structure 1/Ex_06/Ex_06.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/01 Structure 1/_07/_07.pde b/java/examples/Books/Processing Handbook/Units 00-17/01 Structure 1/Ex_07/Ex_07.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/01 Structure 1/_07/_07.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/01 Structure 1/Ex_07/Ex_07.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_01/_01.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_01/Ex_01.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_01/_01.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_01/Ex_01.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_02/_02.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_02/Ex_02.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_02/_02.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_02/Ex_02.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_03/_03.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_03/Ex_03.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_03/_03.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_03/Ex_03.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_04/_04.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_04/Ex_04.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_04/_04.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_04/Ex_04.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_05/_05.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_05/Ex_05.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_05/_05.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_05/Ex_05.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_06/_06.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_06/Ex_06.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_06/_06.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_06/Ex_06.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_07/_07.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_07/Ex_07.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_07/_07.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_07/Ex_07.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_08/_08.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_08/Ex_08.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_08/_08.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_08/Ex_08.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_09/_09.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_09/Ex_09.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_09/_09.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_09/Ex_09.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_10/_10.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_10/Ex_10.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_10/_10.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_10/Ex_10.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_11/_11.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_11/Ex_11.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_11/_11.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_11/Ex_11.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_12/_12.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_12/Ex_12.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_12/_12.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_12/Ex_12.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_13/_13.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_13/Ex_13.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_13/_13.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_13/Ex_13.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_14/_14.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_14/Ex_14.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_14/_14.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_14/Ex_14.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_15/_15.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_15/Ex_15.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_15/_15.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_15/Ex_15.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_16/_16.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_16/Ex_16.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_16/_16.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_16/Ex_16.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_17/_17.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_17/Ex_17.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_17/_17.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_17/Ex_17.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_18/_18.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_18/Ex_18.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_18/_18.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_18/Ex_18.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_19/_19.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_19/Ex_19.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_19/_19.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_19/Ex_19.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_20/_20.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_20/Ex_20.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_20/_20.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_20/Ex_20.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_21/_21.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_21/Ex_21.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_21/_21.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_21/Ex_21.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_22/_22.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_22/Ex_22.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_22/_22.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_22/Ex_22.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_23/_23.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_23/Ex_23.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_23/_23.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_23/Ex_23.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_24/_24.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_24/Ex_24.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_24/_24.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_24/Ex_24.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_25/_25.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_25/Ex_25.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_25/_25.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_25/Ex_25.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_26/_26.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_26/Ex_26.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_26/_26.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_26/Ex_26.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_27/_27.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_27/Ex_27.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_27/_27.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_27/Ex_27.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_28/_28.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_28/Ex_28.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_28/_28.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_28/Ex_28.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_29/_29.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_29/Ex_29.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_29/_29.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_29/Ex_29.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_30/_30.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_30/Ex_30.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_30/_30.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_30/Ex_30.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_31/_31.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_31/Ex_31.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_31/_31.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_31/Ex_31.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_32/_32.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_32/Ex_32.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_32/_32.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_32/Ex_32.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_33/_33.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_33/Ex_33.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_33/_33.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_33/Ex_33.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_34/_34.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_34/Ex_34.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_34/_34.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_34/Ex_34.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_35/_35.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_35/Ex_35.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_35/_35.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_35/Ex_35.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_36/_36.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_36/Ex_36.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_36/_36.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_36/Ex_36.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_37/_37.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_37/Ex_37.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_37/_37.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_37/Ex_37.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_38/_38.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_38/Ex_38.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_38/_38.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_38/Ex_38.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_39/_39.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_39/Ex_39.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_39/_39.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_39/Ex_39.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_40/_40.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_40/Ex_40.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_40/_40.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_40/Ex_40.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_41/_41.pde b/java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_41/Ex_41.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/_41/_41.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/02 Shape 1/Ex_41/Ex_41.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/_01/_01.pde b/java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/Ex_01/Ex_01.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/_01/_01.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/Ex_01/Ex_01.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/_02/_02.pde b/java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/Ex_02/Ex_02.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/_02/_02.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/Ex_02/Ex_02.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/_03/_03.pde b/java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/Ex_03/Ex_03.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/_03/_03.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/Ex_03/Ex_03.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/_04/_04.pde b/java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/Ex_04/Ex_04.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/_04/_04.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/Ex_04/Ex_04.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/_05/_05.pde b/java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/Ex_05/Ex_05.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/_05/_05.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/Ex_05/Ex_05.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/_06/_06.pde b/java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/Ex_06/Ex_06.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/_06/_06.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/Ex_06/Ex_06.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/_07/_07.pde b/java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/Ex_07/Ex_07.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/_07/_07.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/Ex_07/Ex_07.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/_08/_08.pde b/java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/Ex_08/Ex_08.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/_08/_08.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/Ex_08/Ex_08.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/_09/_09.pde b/java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/Ex_09/Ex_09.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/_09/_09.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/Ex_09/Ex_09.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/_10/_10.pde b/java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/Ex_10/Ex_10.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/_10/_10.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/Ex_10/Ex_10.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/_11/_11.pde b/java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/Ex_11/Ex_11.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/_11/_11.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/03 Data 1/Ex_11/Ex_11.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_01/_01.pde b/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_01/Ex_01.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_01/_01.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_01/Ex_01.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_02/_02.pde b/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_02/Ex_02.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_02/_02.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_02/Ex_02.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_03/_03.pde b/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_03/Ex_03.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_03/_03.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_03/Ex_03.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_04/_04.pde b/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_04/Ex_04.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_04/_04.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_04/Ex_04.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_05/_05.pde b/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_05/Ex_05.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_05/_05.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_05/Ex_05.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_06/_06.pde b/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_06/Ex_06.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_06/_06.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_06/Ex_06.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_07/_07.pde b/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_07/Ex_07.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_07/_07.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_07/Ex_07.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_08/_08.pde b/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_08/Ex_08.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_08/_08.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_08/Ex_08.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_09/_09.pde b/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_09/Ex_09.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_09/_09.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_09/Ex_09.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_10/_10.pde b/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_10/Ex_10.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_10/_10.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_10/Ex_10.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_11/_11.pde b/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_11/Ex_11.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_11/_11.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_11/Ex_11.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_12/_12.pde b/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_12/Ex_12.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_12/_12.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_12/Ex_12.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_13/_13.pde b/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_13/Ex_13.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_13/_13.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_13/Ex_13.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_14/_14.pde b/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_14/Ex_14.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_14/_14.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_14/Ex_14.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_15/_15.pde b/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_15/Ex_15.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_15/_15.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_15/Ex_15.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_16/_16.pde b/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_16/Ex_16.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_16/_16.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_16/Ex_16.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_17/_17.pde b/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_17/Ex_17.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_17/_17.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_17/Ex_17.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_18/_18.pde b/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_18/Ex_18.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_18/_18.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_18/Ex_18.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_19/_19.pde b/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_19/Ex_19.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_19/_19.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_19/Ex_19.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_20/_20.pde b/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_20/Ex_20.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_20/_20.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_20/Ex_20.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_21/_21.pde b/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_21/Ex_21.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_21/_21.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_21/Ex_21.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_22/_22.pde b/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_22/Ex_22.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_22/_22.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_22/Ex_22.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_23/_23.pde b/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_23/Ex_23.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_23/_23.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_23/Ex_23.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_24/_24.pde b/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_24/Ex_24.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_24/_24.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_24/Ex_24.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_25/_25.pde b/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_25/Ex_25.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_25/_25.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_25/Ex_25.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_26/_26.pde b/java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_26/Ex_26.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/_26/_26.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/04 Math 1/Ex_26/Ex_26.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/_01/_01.pde b/java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/Ex_01/Ex_01.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/_01/_01.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/Ex_01/Ex_01.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/_02/_02.pde b/java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/Ex_02/Ex_02.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/_02/_02.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/Ex_02/Ex_02.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/_03/_03.pde b/java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/Ex_03/Ex_03.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/_03/_03.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/Ex_03/Ex_03.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/_04/_04.pde b/java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/Ex_04/Ex_04.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/_04/_04.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/Ex_04/Ex_04.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/_05/_05.pde b/java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/Ex_05/Ex_05.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/_05/_05.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/Ex_05/Ex_05.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/_06/_06.pde b/java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/Ex_06/Ex_06.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/_06/_06.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/Ex_06/Ex_06.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/_07/_07.pde b/java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/Ex_07/Ex_07.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/_07/_07.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/Ex_07/Ex_07.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/_08/_08.pde b/java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/Ex_08/Ex_08.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/_08/_08.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/Ex_08/Ex_08.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/_09/_09.pde b/java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/Ex_09/Ex_09.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/_09/_09.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/Ex_09/Ex_09.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/_10/_10.pde b/java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/Ex_10/Ex_10.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/_10/_10.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/Ex_10/Ex_10.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/_11/_11.pde b/java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/Ex_11/Ex_11.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/_11/_11.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/Ex_11/Ex_11.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/_12/_12.pde b/java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/Ex_12/Ex_12.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/_12/_12.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/Ex_12/Ex_12.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/_13/_13.pde b/java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/Ex_13/Ex_13.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/_13/_13.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/05 Control 1/Ex_13/Ex_13.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/_01/_01.pde b/java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/Ex_01/Ex_01.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/_01/_01.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/Ex_01/Ex_01.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/_02/_02.pde b/java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/Ex_02/Ex_02.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/_02/_02.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/Ex_02/Ex_02.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/_03/_03.pde b/java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/Ex_03/Ex_03.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/_03/_03.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/Ex_03/Ex_03.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/_04/_04.pde b/java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/Ex_04/Ex_04.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/_04/_04.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/Ex_04/Ex_04.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/_05/_05.pde b/java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/Ex_05/Ex_05.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/_05/_05.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/Ex_05/Ex_05.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/_06/_06.pde b/java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/Ex_06/Ex_06.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/_06/_06.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/Ex_06/Ex_06.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/_07/_07.pde b/java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/Ex_07/Ex_07.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/_07/_07.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/Ex_07/Ex_07.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/_08/_08.pde b/java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/Ex_08/Ex_08.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/_08/_08.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/Ex_08/Ex_08.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/_09/_09.pde b/java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/Ex_09/Ex_09.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/_09/_09.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/Ex_09/Ex_09.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/_10/_10.pde b/java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/Ex_10/Ex_10.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/_10/_10.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/Ex_10/Ex_10.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/_11/_11.pde b/java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/Ex_11/Ex_11.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/_11/_11.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/Ex_11/Ex_11.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/_12/_12.pde b/java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/Ex_12/Ex_12.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/_12/_12.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/Ex_12/Ex_12.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/_13/_13.pde b/java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/Ex_13/Ex_13.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/_13/_13.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/06 Control 2/Ex_13/Ex_13.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/_01/_01.pde b/java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/Ex_01/Ex_01.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/_01/_01.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/Ex_01/Ex_01.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/_02/_02.pde b/java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/Ex_02/Ex_02.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/_02/_02.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/Ex_02/Ex_02.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/_03/_03.pde b/java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/Ex_03/Ex_03.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/_03/_03.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/Ex_03/Ex_03.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/_04/_04.pde b/java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/Ex_04/Ex_04.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/_04/_04.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/Ex_04/Ex_04.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/_05/_05.pde b/java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/Ex_05/Ex_05.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/_05/_05.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/Ex_05/Ex_05.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/_06/_06.pde b/java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/Ex_06/Ex_06.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/_06/_06.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/Ex_06/Ex_06.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/_07/_07.pde b/java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/Ex_07/Ex_07.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/_07/_07.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/Ex_07/Ex_07.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/_08/_08.pde b/java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/Ex_08/Ex_08.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/_08/_08.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/Ex_08/Ex_08.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/_09/_09.pde b/java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/Ex_09/Ex_09.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/_09/_09.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/Ex_09/Ex_09.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/_10/_10.pde b/java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/Ex_10/Ex_10.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/_10/_10.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/Ex_10/Ex_10.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/_11/_11.pde b/java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/Ex_11/Ex_11.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/_11/_11.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/Ex_11/Ex_11.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/_12/_12.pde b/java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/Ex_12/Ex_12.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/_12/_12.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/Ex_12/Ex_12.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/_13/_13.pde b/java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/Ex_13/Ex_13.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/_13/_13.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/Ex_13/Ex_13.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/_14/_14.pde b/java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/Ex_14/Ex_14.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/_14/_14.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/Ex_14/Ex_14.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/_15/_15.pde b/java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/Ex_15/Ex_15.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/_15/_15.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/Ex_15/Ex_15.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/_16/_16.pde b/java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/Ex_16/Ex_16.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/_16/_16.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/Ex_16/Ex_16.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/_17/_17.pde b/java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/Ex_17/Ex_17.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/_17/_17.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/Ex_17/Ex_17.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/_18/_18.pde b/java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/Ex_18/Ex_18.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/_18/_18.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/07 Shape 2/Ex_18/Ex_18.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/_01/_01.pde b/java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/Ex_01/Ex_01.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/_01/_01.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/Ex_01/Ex_01.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/_02/_02.pde b/java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/Ex_02/Ex_02.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/_02/_02.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/Ex_02/Ex_02.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/_03/_03.pde b/java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/Ex_03/Ex_03.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/_03/_03.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/Ex_03/Ex_03.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/_04/_04.pde b/java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/Ex_04/Ex_04.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/_04/_04.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/Ex_04/Ex_04.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/_05/_05.pde b/java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/Ex_05/Ex_05.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/_05/_05.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/Ex_05/Ex_05.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/_06/_06.pde b/java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/Ex_06/Ex_06.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/_06/_06.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/Ex_06/Ex_06.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/_07/_07.pde b/java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/Ex_07/Ex_07.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/_07/_07.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/Ex_07/Ex_07.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/_08/_08.pde b/java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/Ex_08/Ex_08.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/_08/_08.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/Ex_08/Ex_08.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/_09/_09.pde b/java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/Ex_09/Ex_09.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/_09/_09.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/Ex_09/Ex_09.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/_10/_10.pde b/java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/Ex_10/Ex_10.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/_10/_10.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/Ex_10/Ex_10.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/_11/_11.pde b/java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/Ex_11/Ex_11.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/_11/_11.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/Ex_11/Ex_11.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/_12/_12.pde b/java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/Ex_12/Ex_12.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/_12/_12.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/08 Math 2/Ex_12/Ex_12.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_01/_01.pde b/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_01/Ex_01.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_01/_01.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_01/Ex_01.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_02/_02.pde b/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_02/Ex_02.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_02/_02.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_02/Ex_02.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_03/_03.pde b/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_03/Ex_03.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_03/_03.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_03/Ex_03.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_04/_04.pde b/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_04/Ex_04.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_04/_04.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_04/Ex_04.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_05/_05.pde b/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_05/Ex_05.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_05/_05.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_05/Ex_05.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_06/_06.pde b/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_06/Ex_06.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_06/_06.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_06/Ex_06.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_07/_07.pde b/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_07/Ex_07.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_07/_07.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_07/Ex_07.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_08/_08.pde b/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_08/Ex_08.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_08/_08.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_08/Ex_08.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_09/_09.pde b/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_09/Ex_09.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_09/_09.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_09/Ex_09.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_10/_10.pde b/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_10/Ex_10.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_10/_10.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_10/Ex_10.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_11/_11.pde b/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_11/Ex_11.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_11/_11.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_11/Ex_11.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_12/_12.pde b/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_12/Ex_12.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_12/_12.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_12/Ex_12.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_13/_13.pde b/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_13/Ex_13.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_13/_13.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_13/Ex_13.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_14/_14.pde b/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_14/Ex_14.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_14/_14.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_14/Ex_14.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_15/_15.pde b/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_15/Ex_15.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_15/_15.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_15/Ex_15.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_16/_16.pde b/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_16/Ex_16.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_16/_16.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_16/Ex_16.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_17/_17.pde b/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_17/Ex_17.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_17/_17.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_17/Ex_17.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_18/_18.pde b/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_18/Ex_18.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_18/_18.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_18/Ex_18.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_19/_19.pde b/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_19/Ex_19.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_19/_19.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_19/Ex_19.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_20/_20.pde b/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_20/Ex_20.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_20/_20.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_20/Ex_20.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_21/_21.pde b/java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_21/Ex_21.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/_21/_21.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/09 Color 1/Ex_21/Ex_21.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/_01/_01.pde b/java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/Ex_01/Ex_01.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/_01/_01.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/Ex_01/Ex_01.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/_02/_02.pde b/java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/Ex_02/Ex_02.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/_02/_02.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/Ex_02/Ex_02.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/_03/_03.pde b/java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/Ex_03/Ex_03.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/_03/_03.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/Ex_03/Ex_03.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/_04/_04.pde b/java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/Ex_04/Ex_04.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/_04/_04.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/Ex_04/Ex_04.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/_05/_05.pde b/java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/Ex_05/Ex_05.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/_05/_05.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/Ex_05/Ex_05.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/_06/_06.pde b/java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/Ex_06/Ex_06.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/_06/_06.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/Ex_06/Ex_06.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/_07/_07.pde b/java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/Ex_07/Ex_07.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/_07/_07.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/Ex_07/Ex_07.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/_08/_08.pde b/java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/Ex_08/Ex_08.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/_08/_08.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/Ex_08/Ex_08.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/_08/data/archTrans.gif b/java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/Ex_08/data/archTrans.gif
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/_08/data/archTrans.gif
rename to java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/Ex_08/data/archTrans.gif
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/_08/data/mud-trans.gif b/java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/Ex_08/data/mud-trans.gif
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/_08/data/mud-trans.gif
rename to java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/Ex_08/data/mud-trans.gif
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/_09/_09.pde b/java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/Ex_09/Ex_09.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/_09/_09.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/10 Image 1/Ex_09/Ex_09.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/_01/_01.pde b/java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/Ex_01/Ex_01.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/_01/_01.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/Ex_01/Ex_01.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/_01/data/archTrans.gif b/java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/Ex_01/data/archTrans.gif
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/_01/data/archTrans.gif
rename to java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/Ex_01/data/archTrans.gif
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/_02/_02.pde b/java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/Ex_02/Ex_02.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/_02/_02.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/Ex_02/Ex_02.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/_02/data/archTrans.gif b/java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/Ex_02/data/archTrans.gif
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/_02/data/archTrans.gif
rename to java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/Ex_02/data/archTrans.gif
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/_03/_03.pde b/java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/Ex_03/Ex_03.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/_03/_03.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/Ex_03/Ex_03.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/_03/data/archTrans.gif b/java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/Ex_03/data/archTrans.gif
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/_03/data/archTrans.gif
rename to java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/Ex_03/data/archTrans.gif
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/_04/_04.pde b/java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/Ex_04/Ex_04.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/_04/_04.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/Ex_04/Ex_04.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/_04/data/archTrans.gif b/java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/Ex_04/data/archTrans.gif
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/_04/data/archTrans.gif
rename to java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/Ex_04/data/archTrans.gif
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/_05/_05.pde b/java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/Ex_05/Ex_05.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/_05/_05.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/Ex_05/Ex_05.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/_05/data/archTrans.gif b/java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/Ex_05/data/archTrans.gif
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/_05/data/archTrans.gif
rename to java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/Ex_05/data/archTrans.gif
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/_06/_06.pde b/java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/Ex_06/Ex_06.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/_06/_06.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/Ex_06/Ex_06.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/_06/data/archTrans.gif b/java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/Ex_06/data/archTrans.gif
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/_06/data/archTrans.gif
rename to java/examples/Books/Processing Handbook/Units 00-17/11 Data 2/Ex_06/data/archTrans.gif
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/_01/_01.pde b/java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/Ex_01/Ex_01.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/_01/_01.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/Ex_01/Ex_01.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/_02/_02.pde b/java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/Ex_02/Ex_02.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/_02/_02.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/Ex_02/Ex_02.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/_03/_03.pde b/java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/Ex_03/Ex_03.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/_03/_03.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/Ex_03/Ex_03.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/_04/_04.pde b/java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/Ex_04/Ex_04.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/_04/_04.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/Ex_04/Ex_04.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/_05/_05.pde b/java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/Ex_05/Ex_05.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/_05/_05.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/Ex_05/Ex_05.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/_06/_06.pde b/java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/Ex_06/Ex_06.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/_06/_06.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/Ex_06/Ex_06.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/_07/_07.pde b/java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/Ex_07/Ex_07.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/_07/_07.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/Ex_07/Ex_07.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/_08/_08.pde b/java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/Ex_08/Ex_08.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/_08/_08.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/Ex_08/Ex_08.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/_09/_09.pde b/java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/Ex_09/Ex_09.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/_09/_09.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/Ex_09/Ex_09.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/_10/_10.pde b/java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/Ex_10/Ex_10.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/_10/_10.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/Ex_10/Ex_10.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/_11/_11.pde b/java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/Ex_11/Ex_11.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/_11/_11.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/Ex_11/Ex_11.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/_12/_12.pde b/java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/Ex_12/Ex_12.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/_12/_12.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/Ex_12/Ex_12.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/_13/_13.pde b/java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/Ex_13/Ex_13.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/_13/_13.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/Ex_13/Ex_13.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/_14/_14.pde b/java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/Ex_14/Ex_14.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/_14/_14.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/Ex_14/Ex_14.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/_15/_15.pde b/java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/Ex_15/Ex_15.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/_15/_15.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/12 Data 3/Ex_15/Ex_15.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_01/_01.pde b/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_01/Ex_01.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_01/_01.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_01/Ex_01.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_01/data/Ziggurat-32.vlw b/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_01/data/Ziggurat-32.vlw
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_01/data/Ziggurat-32.vlw
rename to java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_01/data/Ziggurat-32.vlw
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_02/_02.pde b/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_02/Ex_02.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_02/_02.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_02/Ex_02.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_02/data/Ziggurat-32.vlw b/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_02/data/Ziggurat-32.vlw
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_02/data/Ziggurat-32.vlw
rename to java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_02/data/Ziggurat-32.vlw
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_03/_03.pde b/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_03/Ex_03.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_03/_03.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_03/Ex_03.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_03/data/Courier-12.vlw b/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_03/data/Courier-12.vlw
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_03/data/Courier-12.vlw
rename to java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_03/data/Courier-12.vlw
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_03/data/Ziggurat-12.vlw b/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_03/data/Ziggurat-12.vlw
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_03/data/Ziggurat-12.vlw
rename to java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_03/data/Ziggurat-12.vlw
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_04/_04.pde b/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_04/Ex_04.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_04/_04.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_04/Ex_04.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_04/data/Courier-48.vlw b/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_04/data/Courier-48.vlw
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_04/data/Courier-48.vlw
rename to java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_04/data/Courier-48.vlw
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_04/data/Ziggurat-32.vlw b/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_04/data/Ziggurat-32.vlw
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_04/data/Ziggurat-32.vlw
rename to java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_04/data/Ziggurat-32.vlw
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_05/_05.pde b/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_05/Ex_05.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_05/_05.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_05/Ex_05.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_05/data/Courier-96.vlw b/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_05/data/Courier-96.vlw
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_05/data/Courier-96.vlw
rename to java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_05/data/Courier-96.vlw
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_05/data/Ziggurat-32.vlw b/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_05/data/Ziggurat-32.vlw
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_05/data/Ziggurat-32.vlw
rename to java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_05/data/Ziggurat-32.vlw
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_05/data/Ziggurat-48.vlw b/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_05/data/Ziggurat-48.vlw
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_05/data/Ziggurat-48.vlw
rename to java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_05/data/Ziggurat-48.vlw
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_05/data/Ziggurat-72.vlw b/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_05/data/Ziggurat-72.vlw
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_05/data/Ziggurat-72.vlw
rename to java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_05/data/Ziggurat-72.vlw
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_06/_06.pde b/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_06/Ex_06.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_06/_06.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_06/Ex_06.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_06/data/Courier-48.vlw b/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_06/data/Courier-48.vlw
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_06/data/Courier-48.vlw
rename to java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_06/data/Courier-48.vlw
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_06/data/CourierItalic-48.vlw b/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_06/data/CourierItalic-48.vlw
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_06/data/CourierItalic-48.vlw
rename to java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_06/data/CourierItalic-48.vlw
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_06/data/Ziggurat-32.vlw b/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_06/data/Ziggurat-32.vlw
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_06/data/Ziggurat-32.vlw
rename to java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_06/data/Ziggurat-32.vlw
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_06/data/ZigguratItalic-32.vlw b/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_06/data/ZigguratItalic-32.vlw
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_06/data/ZigguratItalic-32.vlw
rename to java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_06/data/ZigguratItalic-32.vlw
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_06/data/ZigguratItalic-48.vlw b/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_06/data/ZigguratItalic-48.vlw
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_06/data/ZigguratItalic-48.vlw
rename to java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_06/data/ZigguratItalic-48.vlw
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_07/_07.pde b/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_07/Ex_07.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_07/_07.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_07/Ex_07.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_07/data/Courier-48.vlw b/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_07/data/Courier-48.vlw
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_07/data/Courier-48.vlw
rename to java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_07/data/Courier-48.vlw
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_07/data/CourierItalic-48.vlw b/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_07/data/CourierItalic-48.vlw
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_07/data/CourierItalic-48.vlw
rename to java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_07/data/CourierItalic-48.vlw
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_07/data/Ziggurat-32.vlw b/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_07/data/Ziggurat-32.vlw
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_07/data/Ziggurat-32.vlw
rename to java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_07/data/Ziggurat-32.vlw
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_08/_08.pde b/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_08/Ex_08.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_08/_08.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_08/Ex_08.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_08/data/Courier-12.vlw b/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_08/data/Courier-12.vlw
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_08/data/Courier-12.vlw
rename to java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_08/data/Courier-12.vlw
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_08/data/Ziggurat-12.vlw b/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_08/data/Ziggurat-12.vlw
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_08/data/Ziggurat-12.vlw
rename to java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_08/data/Ziggurat-12.vlw
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_09/_09.pde b/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_09/Ex_09.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_09/_09.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_09/Ex_09.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_09/data/Courier-12.vlw b/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_09/data/Courier-12.vlw
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_09/data/Courier-12.vlw
rename to java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_09/data/Courier-12.vlw
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_09/data/Ziggurat-12.vlw b/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_09/data/Ziggurat-12.vlw
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_09/data/Ziggurat-12.vlw
rename to java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_09/data/Ziggurat-12.vlw
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_10/_10.pde b/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_10/Ex_10.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_10/_10.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_10/Ex_10.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_10/data/Courier-12.vlw b/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_10/data/Courier-12.vlw
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_10/data/Courier-12.vlw
rename to java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_10/data/Courier-12.vlw
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_10/data/Ziggurat-12.vlw b/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_10/data/Ziggurat-12.vlw
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_10/data/Ziggurat-12.vlw
rename to java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_10/data/Ziggurat-12.vlw
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_11/_11.pde b/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_11/Ex_11.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_11/_11.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_11/Ex_11.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_11/data/Courier-32.vlw b/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_11/data/Courier-32.vlw
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_11/data/Courier-32.vlw
rename to java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_11/data/Courier-32.vlw
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_11/data/Ziggurat-32.vlw b/java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_11/data/Ziggurat-32.vlw
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/_11/data/Ziggurat-32.vlw
rename to java/examples/Books/Processing Handbook/Units 00-17/13 Typography 1/Ex_11/data/Ziggurat-32.vlw
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/_01/_01.pde b/java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/Ex_01/Ex_01.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/_01/_01.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/Ex_01/Ex_01.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/_02/_02.pde b/java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/Ex_02/Ex_02.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/_02/_02.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/Ex_02/Ex_02.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/_03/_03.pde b/java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/Ex_03/Ex_03.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/_03/_03.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/Ex_03/Ex_03.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/_04/_04.pde b/java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/Ex_04/Ex_04.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/_04/_04.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/Ex_04/Ex_04.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/_05/_05.pde b/java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/Ex_05/Ex_05.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/_05/_05.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/Ex_05/Ex_05.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/_06/_06.pde b/java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/Ex_06/Ex_06.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/_06/_06.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/Ex_06/Ex_06.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/_07/_07.pde b/java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/Ex_07/Ex_07.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/_07/_07.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/Ex_07/Ex_07.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/_08/14-08.tif b/java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/Ex_08/14-08.tif
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/_08/14-08.tif
rename to java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/Ex_08/14-08.tif
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/_08/_08.pde b/java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/Ex_08/Ex_08.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/_08/_08.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/Ex_08/Ex_08.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/_09/_09.pde b/java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/Ex_09/Ex_09.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/_09/_09.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/Ex_09/Ex_09.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/_10/_10.pde b/java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/Ex_10/Ex_10.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/_10/_10.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/Ex_10/Ex_10.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/_11/_11.pde b/java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/Ex_11/Ex_11.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/_11/_11.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/Ex_11/Ex_11.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/_12/_12.pde b/java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/Ex_12/Ex_12.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/_12/_12.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/Ex_12/Ex_12.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/_13/_13.pde b/java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/Ex_13/Ex_13.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/_13/_13.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/Ex_13/Ex_13.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/_14/_14.pde b/java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/Ex_14/Ex_14.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/_14/_14.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/Ex_14/Ex_14.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/_15/_15.pde b/java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/Ex_15/Ex_15.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/_15/_15.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/Ex_15/Ex_15.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/_16/_16.pde b/java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/Ex_16/Ex_16.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/_16/_16.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/Ex_16/Ex_16.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/_17/_17.pde b/java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/Ex_17/Ex_17.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/_17/_17.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/14 Math 3/Ex_17/Ex_17.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/_01/_01.pde b/java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/Ex_01/Ex_01.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/_01/_01.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/Ex_01/Ex_01.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/_02/_02.pde b/java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/Ex_02/Ex_02.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/_02/_02.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/Ex_02/Ex_02.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/_03/_03.pde b/java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/Ex_03/Ex_03.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/_03/_03.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/Ex_03/Ex_03.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/_04/_04.pde b/java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/Ex_04/Ex_04.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/_04/_04.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/Ex_04/Ex_04.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/_05/_05.pde b/java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/Ex_05/Ex_05.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/_05/_05.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/Ex_05/Ex_05.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/_06/_06.pde b/java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/Ex_06/Ex_06.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/_06/_06.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/Ex_06/Ex_06.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/_07/_07.pde b/java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/Ex_07/Ex_07.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/_07/_07.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/Ex_07/Ex_07.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/_08/_08.pde b/java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/Ex_08/Ex_08.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/_08/_08.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/Ex_08/Ex_08.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/_09/_09.pde b/java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/Ex_09/Ex_09.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/_09/_09.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/Ex_09/Ex_09.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/_10/_10.pde b/java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/Ex_10/Ex_10.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/_10/_10.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/15 Math 4/Ex_10/Ex_10.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/16 Transform 1/_01/_01.pde b/java/examples/Books/Processing Handbook/Units 00-17/16 Transform 1/Ex_01/Ex_01.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/16 Transform 1/_01/_01.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/16 Transform 1/Ex_01/Ex_01.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/16 Transform 1/_02/_02.pde b/java/examples/Books/Processing Handbook/Units 00-17/16 Transform 1/Ex_02/Ex_02.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/16 Transform 1/_02/_02.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/16 Transform 1/Ex_02/Ex_02.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/16 Transform 1/_03/_03.pde b/java/examples/Books/Processing Handbook/Units 00-17/16 Transform 1/Ex_03/Ex_03.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/16 Transform 1/_03/_03.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/16 Transform 1/Ex_03/Ex_03.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/16 Transform 1/_04/_04.pde b/java/examples/Books/Processing Handbook/Units 00-17/16 Transform 1/Ex_04/Ex_04.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/16 Transform 1/_04/_04.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/16 Transform 1/Ex_04/Ex_04.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/16 Transform 1/_05/_05.pde b/java/examples/Books/Processing Handbook/Units 00-17/16 Transform 1/Ex_05/Ex_05.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/16 Transform 1/_05/_05.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/16 Transform 1/Ex_05/Ex_05.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/16 Transform 1/_06/_06.pde b/java/examples/Books/Processing Handbook/Units 00-17/16 Transform 1/Ex_06/Ex_06.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/16 Transform 1/_06/_06.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/16 Transform 1/Ex_06/Ex_06.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/_01/_01.pde b/java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/Ex_01/Ex_01.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/_01/_01.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/Ex_01/Ex_01.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/_02/_02.pde b/java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/Ex_02/Ex_02.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/_02/_02.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/Ex_02/Ex_02.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/_03/_03.pde b/java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/Ex_03/Ex_03.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/_03/_03.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/Ex_03/Ex_03.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/_04/_04.pde b/java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/Ex_04/Ex_04.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/_04/_04.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/Ex_04/Ex_04.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/_05/_05.pde b/java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/Ex_05/Ex_05.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/_05/_05.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/Ex_05/Ex_05.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/_06/_06.pde b/java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/Ex_06/Ex_06.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/_06/_06.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/Ex_06/Ex_06.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/_07/_07.pde b/java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/Ex_07/Ex_07.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/_07/_07.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/Ex_07/Ex_07.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/_08/_08.pde b/java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/Ex_08/Ex_08.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/_08/_08.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/Ex_08/Ex_08.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/_09/_09.pde b/java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/Ex_09/Ex_09.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/_09/_09.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/Ex_09/Ex_09.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/_10/_10.pde b/java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/Ex_10/Ex_10.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/_10/_10.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/Ex_10/Ex_10.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/_11/_11.pde b/java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/Ex_11/Ex_11.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/_11/_11.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/Ex_11/Ex_11.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/_12/_12.pde b/java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/Ex_12/Ex_12.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/_12/_12.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/Ex_12/Ex_12.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/_13/_13.pde b/java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/Ex_13/Ex_13.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/_13/_13.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/Ex_13/Ex_13.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/_14/_14.pde b/java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/Ex_14/Ex_14.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/_14/_14.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/Ex_14/Ex_14.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/_15/_15.pde b/java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/Ex_15/Ex_15.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/_15/_15.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/Ex_15/Ex_15.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/_16/_16.pde b/java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/Ex_16/Ex_16.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/_16/_16.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/Ex_16/Ex_16.pde
diff --git a/java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/_17/_17.pde b/java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/Ex_17/Ex_17.pde
similarity index 100%
rename from java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/_17/_17.pde
rename to java/examples/Books/Processing Handbook/Units 00-17/17 Transform 2/Ex_17/Ex_17.pde