Java For loop Iterator

In this tutorial we will learn how to use the Iterator interface as Array. We will create an example print the multiple ArrayList at a time using the Iterator.

 
 

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Java For loop Iterator

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In this tutorial we will learn how to use the Iterator interface as Array. We will create an example print the multiple ArrayList at a time using the Iterator.

  • Iterator can be used with the for loop also.
  • Initialization of the Iterator is done before the for loop.
  • Iterator has boolean value with the hasNext method.
  • So no increment/decrement is required.


Java for Loop Iterator Example
import java.util.ArrayList;
import java.util.Iterator;

public class javafor {
	public static void main(String[] args) {
		ArrayList list = new ArrayList();
		list.add(new Integer(111));
		list.add(222);
		list.add(new Integer(333));
		list.add(444);

		Iterator it = list.iterator();
		for (; it.hasNext();) {
			System.out.println(it.next());
		}
	}
}

Output

111 222 333 444

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Posted on: November 3, 2009 If you enjoyed this post then why not add us on Google+? Add us to your Circles