Using an Iterator : Iterable Interface « Collections « Java Tutorial

1. Java Tutorial
2. Collections
3. Iterable Interface

The Iterator interface has the following methods:

1. hasNext.
2. next.
3. remove.

Compared to an Enumeration, hasNext() is equivalent to hasMoreElements() and next() equates to nextElement().

import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;

public class MainClass {
  public static void main(String[] a) {
    Collection c = new ArrayList();
    c.add("1");
    c.add("2");
    c.add("3");
    Iterator i = c.iterator();
    while (i.hasNext()) {
      System.out.println(i.next());
    }
  }
}

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