some fixes for HashMap class examples thanks to @REAS

java/examples/Topics/Advanced Data/HashMapClass/HashMapClass.pde

@@ -13,6 +13,9 @@
  * offer a simpler way of pairing Strings with numbers or other Strings.
  * Here we use a HashMap because we want to pair a String with a custom
  * object, in this case a "Word" object that stores two numbers.
+ *
+ * In this example, words that appear in one book (Dracula) only are colored white 
+ * while words the other (Frankenstein) are colored black.
  */
 
 // The next line is needed if running in JavaScript Mode with Processing.js
@@ -35,7 +38,7 @@ void setup() {
 }
 
 void draw() {
-  background(0);
+  background(126);
   
   // Show words
   for (Word w : words.values()) {

java/examples/Topics/Advanced Data/HashMapClass/Word.pde

@@ -43,7 +43,7 @@ class Word {
   
   // The more often it appears, the faster it falls
   void move() {
-    float speed = map(totalCount,5,25,0.1,3);
+    float speed = map(totalCount, 5, 25, 0.1, 0.4);
     speed = constrain(speed,0,10);
     position.y += speed;
 
@@ -56,10 +56,10 @@ class Word {
   // Depending on which book it gets a color
   void display() {
     if (countDracula > 0) {
-      fill(121, 0, 31);
+      fill(255);
     } 
     else if (countFranken > 0) {
-      fill(33, 72, 122);
+      fill(0);
     }
     // Its size is also tied to number of occurences
     float fs = map(totalCount,5,25,2,24);