moving examples to hang out with their libraries

java/libraries/pdf/examples/RandomBook/RandomBook.pde

@@ -0,0 +1,45 @@
+/**
+ * RandomBook
+ * 
+ * Creates a 768 page book of random lines.
+ */
+
+import processing.pdf.*;
+
+PGraphicsPDF pdf;
+
+void setup() {
+  size(594, 842);
+  // randomSeed(0);  // Uncomment to make the same book each time
+  pdf = (PGraphicsPDF)beginRecord(PDF, "RandomBook.pdf");
+  beginRecord(pdf);
+}
+
+void draw() {  
+  background(255);
+  
+  for (int i=0; i<100; i++) {
+    float r = random(1.0);
+    if(r < 0.2) {
+      stroke(255); 
+    } else {
+      stroke(0); 
+    }
+    float sw = pow(random(1.0), 12);
+    strokeWeight(sw * 260); 
+    float x1 = random(-200, -100);
+    float x2 = random(width+100, width+200);
+    float y1 = random(-100, height+100);
+    float y2 = random(-100, height+100);
+    line(x1, y1, x2, y2);
+  }
+
+  if(frameCount == 768) {
+    endRecord();
+    exit();  // Quit
+  } else {
+    pdf.nextPage();  // Tell it to go to the next page 
+  }
+}
+
+