Java developers have a choice for iterating collection of objects. Here's why the Java Iterator vs. Enumeration debate is all about the Iterator.

There are benefits and drawbacks to Java's Iterator vs. ListIterator interface. Learn how to make the right choice when you choose between them.

In the iterator, store the current node, the current word (all previous characters, initially empty), and the position in the children/links array.

Does not contain all the methods you would expect of a LinkedList. Also implements the iterator remove method in O (N) time. An O (1) time remove method is possible. UnsortedHashSet - An unsorted set ...