Java Collection Tutorial - Java ArrayDeque.toArray(T[] a)

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Syntax

ArrayDeque.toArray(T[] a) has the following syntax.

public <T> T[] toArray(T[] a)

Example

In the following code shows how to use ArrayDeque.toArray(T[] a) method.

import java.util.ArrayDeque;
import java.util.Deque;
/*  w w  w  .  j  av a  2  s  . com*/
public class Main {
  public static void main(String[] args) {

    Deque<Integer> deque = new ArrayDeque<Integer>(8);

    deque.add(3);
    deque.add(1);
    deque.add(25);
    deque.add(18);

    System.out.println(deque);

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

The code above generates the following result.

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