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