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]);
}
} |
Output:
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]);
}
} |
Output:
The ArrayDeque: [10, 15, 30, 20, 5, 25] The array is: 10 15 30 20 5 25