Java.util.ArrayDeque.iterator() Method

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Description

The java.util.ArrayDeque.iterator() method returns an iterator over the elements in this deque.

Declaration

Following is the declaration for java.util.ArrayDeque.iterator() method

public Iterator<E> iterator()

Parameters

  • NA

Return Value

This method returns an iterator over the elements in this deque.

Exception

  • NA

Example

The following example shows the usage of java.util.ArrayDeque.iterator() method.

package com.tutorialspoint;

import java.util.ArrayDeque;
import java.util.Deque;
import java.util.Iterator;

public class ArrayDequeDemo {
   public static void main(String[] args) {
      
      // create an empty array deque with an initial capacity
      Deque<Integer> deque = new ArrayDeque<Integer>(8);

      // use add() method to add elements in the deque
      deque.add(15);
      deque.add(22);
      deque.add(25);
      deque.add(20);

      // iterator() is used to print all the elements
      // next() returns the next element on each iteration
      System.out.println("printing elements using iterator:");
      for(Iterator itr = deque.iterator();itr.hasNext();)  {
        System.out.println(itr.next());
      }
   }
}   

Let us compile and run the above program, this will produce the following result:

printing elements using iterator:
15
22
25
20



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