Java ArrayDeque Class: clone() Method

public ArrayDeque<E> clone()

The clone() method is used to create copy of a given deque.

Package: java.util

Java Platform: Java SE 8

Syntax:

clone()

Return Value:

a copy of this deque

Return Value Type: ArrayDeque<E - the type of elements held in this collection>

Pictorial Presentation

Example: Java ArrayDeque Class: clone() Method

import java.util.ArrayDeque;
import java.util.Deque;

public class Main {
   public static void main(String[] args) {
      // Create an empty array deque with an initial capacity
      ArrayDeque<Integer> deque = new ArrayDeque<Integer>(5);

      // Use add() method to add elements in the deque
      deque.add(10);
      deque.add(20);
      deque.add(30);
      deque.add(40);
      System.out.println("Original deque:");
     
     for (Integer n : deque) {
         System.out.println("Number = " + n);
      }
         
      // clone the above deque,
      Deque<Integer> cdeque = deque.clone();

     // Print the elements of the clone deque
     System.out.println("Coloned deque:");
      for (Integer n : cdeque) {
         System.out.println("Number = " + n);
      }
   }
}
 

Output:

Original deque:
Number = 10
Number = 20
Number = 30
Number = 40
Coloned deque:
Number = 10
Number = 20
Number = 30
Number = 40

Java Code Editor:

Previous: clear Method
Next: contains Method