class java.util.ArrayList class java.util.LinkedList In this case, the implementation methods for ArrayList, LinkedList, and Vector are all different, which is a great scenario for using an interface.

In this Java 101 tutorial, I’ve explained how interfaces differ from classes, and showed you how to declare, implement, and extend interfaces in your Java programs.

Anyway- its an implementation of a Trie following these interfaces.. It seems to work okay, but I'm not sure how to go about coding the iterator.. Can anyone outline a basic algorithm to return ...