package com.google; import java.util.Collection; import java.util.Iterator; import java.util.LinkedList; import java.util.NoSuchElementException; public class MyIterator implements Iterator{ int pos; private Collection coll; public boolean hasNext() { return pos list = new LinkedList(); list.add(1);list.add(2);list.add(3); MyIterator iter = new MyIterator(); iter.coll = list; iter.pos = 0; while (iter.hasNext()){ System.out.println(iter.next()); } } }