ArrayDeque clone() Method in Java (original) (raw)

Last Updated : 11 Jul, 2018

The Java.util.ArrayDeque.clone() method is used to return a shallow copy of this deque. It just creates a copy of the deque.Syntax:

Array_Deque.clone()

Parameters: The method does not take any parameter.Return Value: The method just returns a copy of the ArrayDeque. Below programs illustrate the Java.util.ArrayDeque.clone() method:Program 1:

Java `

// Java code to illustrate clone() import java.util.*;

public class ArrayDequeDemo { public static void main(String args[]) { // Creating an empty ArrayDeque ArrayDeque de_que = new ArrayDeque();

    // Use add() method to add elements into the Deque
    de_que.add("Welcome");
    de_que.add("To");
    de_que.add("Geeks");
    de_que.add("4");
    de_que.add("Geeks");

    // Displaying the ArrayDeque
    System.out.println("ArrayDeque: " + de_que);

    // Creating another array to copy
    Deque<String> copy_deque = de_que.clone();

    // Displaying the copy of Deque
    System.out.println("The cloned array is: " + copy_deque);
}

}

`

Output:

ArrayDeque: [Welcome, To, Geeks, 4, Geeks] The cloned array is: [Welcome, To, Geeks, 4, Geeks]

Program 2:

Java `

// Java code to illustrate clone() import java.util.*;

public class ArrayDequeDemo { public static void main(String args[]) { // Creating an empty ArrayDeque ArrayDeque de_que = new ArrayDeque(8);

    // 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);

    // Displaying the ArrayDeque
    System.out.println("ArrayDeque: " + de_que);

    // Creating another array to copy
    Deque<Integer> copy_deque = de_que.clone();

    // Displaying the copy of Deque
    System.out.println("The cloned array is: " + copy_deque);
}

}

`

Output:

ArrayDeque: [10, 15, 30, 20, 5] The cloned array is: [10, 15, 30, 20, 5]