Java.util.ArrayDeque.toArray() Method

Description

The java.util.ArrayDeque.toArray() method returns an array containing all of the elements in this deque in proper sequence.

Declaration

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

public Object[] toArray()

Parameters

NA

Return Value

This method returns an array containing all of the elements in this deque.

Exception

NA

Example

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

package com.tutorialspoint;

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

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(20);
      deque.add(25);
      deque.add(18);

      // let us print all the elements available in deque
      for (Integer number : deque) {
         System.out.println("Number = " + number);
      } 

      // printing the array length of elements added above
      Object[] ob = deque.toArray();
      System.out.println("\n Array Size : " + ob.length);   
   }
}   

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

Number = 15
Number = 20
Number = 25
Number = 18
Array Size : 4