ArrayList Iterator example

In this example we shall show you how to obtain an ArrayList Iterator, that is an iterator over the elements of the ArrayList. To obtain an ArrayList Iterator one should perform the following steps:

  • Create a new ArrayList.
  • Populate the arrayList with elements, using add(E e) API method of ArrayList.
  • Use iterator() API method to obtain the Iterator of the arrayList elements.
  • Iterate through the arrayList elements, using hasNext() and next() API methods of Iterator,

as described in the code snippet below.

package com.javacodegeeks.snippets.core;

import java.util.ArrayList;
import java.util.Iterator;
public class ArrayListIteratorExample {
  public static void main(String[] args) {
    // Create an ArrayList and populate it with elements
    ArrayList arrayList = new ArrayList();
    // The Iterator object is obtained using iterator() method
    Iterator it = arrayList.iterator();
    // To iterate through the elements of the collection we can use hasNext() and next() methods of Iterator 
    System.out.println("ArrayList elements :");



ArrayList elements :

This was an example of how to obtain an ArrayList Iterator in Java.

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Byron Kiourtzoglou

Byron is a master software engineer working in the IT and Telecom domains. He is an applications developer in a wide variety of applications/services. He is currently acting as the team leader and technical architect for a proprietary service creation and integration platform for both the IT and Telecom industries in addition to a in-house big data real-time analytics solution. He is always fascinated by SOA, middleware services and mobile development. Byron is co-founder and Executive Editor at Java Code Geeks.
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