Java - iterate through Arraylist using iterator

In this article, we would like to show you how to iterate through ArrayList using iterator in Java.

Quick solution:

Iterator<String> myIterator = myArrayList.iterator();

while (myIterator.hasNext()) {
    System.out.print(myIterator.next() + " ");
}

Practical example

In this example, we create an iterator for letters ArrayList to display all the elements in the proper order.

import java.util.*;

public class Example {

    public static void main(String[] args) {
        List<String> letters = new ArrayList<>();

        letters.add("A");
        letters.add("B");
        letters.add("C");

        // create an iterator
        Iterator<String> myIterator = letters.iterator();

        // display values after iterating through the ArrayList
        System.out.println("The iterator values of the list are: ");
        while (myIterator.hasNext()) {
            System.out.print(myIterator.next() + " ");
        }
    }
}

Output:

The iterator values of the list are: 
A B C 

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• Java - how to use Iterator with ArrayList