In this tutorial we will see how to use the iterator interface with ArrayList. We will create an example to display the contents of the ArrayList.

• Iterator is an interface in the collection framework.
• ArrayList is a collection class and implements the List Inteface.
• All the elements of the ArrayList can be traversed by the Iterator.
• Iterator has methods hasNext() and next().

Example of Java Arraylist Iterate

import java.util.*;

public class javaarray {
	public static void main(String[] args) {

		List list = new ArrayList();
		list.add("aaaa");
		list.add("bbbb");
		list.add("cccc");
		list.add("dddd");
		Iterator i = list.iterator();
		while (i.hasNext()) {
			System.out.print(i.next() + "\t");
		}
	}
}

Output

aaaa bbbb cccc dddd

Related Tags for Iterate java Arraylist: