references for basic programming

new
http://processing.org/reference/new.html

Array
http://processing.org/reference/Array.html


ArrayList
http://java.sun.com/javase/6/docs/api/java/util/ArrayList.html


Random
http://java.sun.com/j2se/1.4.2/docs/api/java/util/Random.html#nextGaussian()


Tree
http://en.wikipedia.org/wiki/Tree_%28data_structure%29

(?)  http://java.sun.com/javase/6/docs/api/java/util/TreeMap.html