Clone() Method : Get copy of ArrayDeque in Java

Declaration :

public ArrayDeque<E> clone()

1	public ArrayDeque<E> clone()

Explanation :

Purpose	The java.util.ArrayDeque.clone() method returns a copy of this deque.
Parameters	NA
Return Value	This method returns a copy of this deque.
Exception	NA

Java Program : Example

Below example will explain java.util.ArrayDeque.getFirst() method.

package com.c4learn;
import java.util.ArrayDeque;
import java.util.Deque;
public class ArrayDequeDemo {
   public static void main(String[] args) {
      // Create empty array deque with an initial capacity
	   ArrayDeque<Integer> deque = new ArrayDeque<Integer>(8);
      // Use add() method to add elements
      deque.add(100);
      deque.add(200);
      deque.add(300);
      deque.add(400);        
      deque.add(500);        
      Deque<Integer> deque2 = deque.clone();
      // Print Deque2 elements
      for (Integer num : deque2) {
         System.out.println("Element is " + num);
      }
   }
}

package com.c4learn;

import java.util.ArrayDeque;

import java.util.Deque;

public class ArrayDequeDemo {

public static void main(String[] args) {

// Create empty array deque with an initial capacity

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

// Use add() method to add elements

deque.add(100);

deque.add(200);

deque.add(300);

deque.add(400);

deque.add(500);

Deque<Integer> deque2 = deque.clone();

// Print Deque2 elements

for (Integer num : deque2) {

System.out.println("Element is " + num);

}

Output of Program :

Element is 100
Element is 200
Element is 300
Element is 400
Element is 500

Element is 100

Element is 200

Element is 300

Element is 400

Element is 500