ramu

• Mar 10th, 2006

 

Iterator interface is an interface which has these methods.

boolean hasNext();

Object next();

void remove();

madhu111

• Jul 20th, 2007

 

Iterator Interface is part of java.util package.
It is used to retrive the elements in the collection object one by one.
It has methods like hasNext(),next().
the iterator interface is obtained by using iterator() on the collection object.
and the basic diff b/w iterator and list iterator  is iterator retrieves elements in forward dir.where list iterator retrieves  elements in both the directions. so list iterator is more efficient