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Java program to implement Queue using ArrayDeque class

Java example to implement Queue using ArrayDeque class.
Submitted by Nidhi, on April 28, 2022

Problem Solution:

In this program, we will create 3 queues using the Queue interface with the help of ArrayDequeue class and store elements in a FIFO (First In First Out) manner. Here, we will compare queues using the equals() method.

Program/Source Code:

The source code to implement Queue using ArrayDeque class is given below. The given program is compiled and executed successfully.

// Java program to implement Queue 
// using ArrayDeque class

import java.util.*;

public class Main {
  public static void main(String[] args) {
    Queue < Integer > queue = new ArrayDeque < > ();

    queue.add(10);
    queue.add(20);
    queue.add(30);
    queue.add(40);
    queue.add(50);

    Iterator itr = queue.iterator();
    System.out.println("Queue elements: ");
    while (itr.hasNext()) {
      System.out.print(itr.next() + " ");
    }
  }
}

Output:

Queue elements: 
10 20 30 40 50

Explanation:

In the above program, we imported the "java.util.*" package to use the Queue Interface and LinkedList collection. Here, we created a class Main. The Main class contains a main() method. The main() method is the entry point for the program.

In the main() method, we created a queue using ArrayDeque class and added items to it. Then we printed items of the queue.

Java Queue Interface Programs »


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