The java.util.ArrayDeque.toArray() method is used to form an array of the same elements as that of the Deque. Basically, the method copies all the element from this deque to a new array.
Syntax:
Object[] arr = Array_Deque.toArray()
Parameters: The method does not take any parameters.
Return Value: The method returns an array containing the elements present in the ArrayDeque.
Below programs illustrate the java.util.ArrayDeque.toArray() method.
Program 1:
// Java code to illustrate toArray() import java.util.*;   public class ArrayDequeDemo {     public static void main(String args[])     {         // Creating an empty ArrayDeque         Deque<String> de_que = new ArrayDeque<String>();           // Use add() method to add elements into the Deque         de_que.add( "Welcome" );         de_que.add( "To" );         de_que.add( "Geeks" );         de_que.add( "For" );         de_que.add( "Geeks" );           // Displaying the ArrayDeque         System.out.println( "The ArrayDeque: " + de_que);           // Creating the array and using toArray()         Object[] arr = de_que.toArray();           System.out.println( "The array is:" );         for ( int j = 0 ; j < arr.length; j++)             System.out.println(arr[j]);     } } |
The ArrayDeque: [Welcome, To, Geeks, For, Geeks] The array is: Welcome To Geeks For Geeks
Program 2:
// Java code to illustrate toArray() import java.util.*;   public class ArrayDequeDemo {     public static void main(String args[])     {         // Creating an empty ArrayDeque         Deque<Integer> de_que = new ArrayDeque<Integer>();           // Use add() method to add elements into the Deque         de_que.add( 10 );         de_que.add( 15 );         de_que.add( 30 );         de_que.add( 20 );         de_que.add( 5 );         de_que.add( 25 );           // Displaying the ArrayDeque         System.out.println( "The ArrayDeque: " + de_que);           // Creating the array and using toArray()         Object[] arr = de_que.toArray();           System.out.println( "The array is:" );         for ( int j = 0 ; j < arr.length; j++)             System.out.println(arr[j]);     } } |
The ArrayDeque: [10, 15, 30, 20, 5, 25] The array is: 10 15 30 20 5 25