Java For loop Iterator


 

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.

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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