Java program to remove an item from the Queue

Java example to remove an item from the Queue.
Submitted by Nidhi, on April 26, 2022

Problem statement

In this program, we will create a queue using the Queue interface with the help of Linked List collection and store elements in a FIFO (First In First Out) manner. Then we will remove the first item from the queue using the remove() method.

Source Code

The source code to remove an item from the Queue is given below. The given program is compiled and executed successfully.

// Java program to remove an item from the Queue

import java.util.LinkedList;
import java.util.Queue;

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

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

    System.out.println("Queue elements: \n" + queue);

    System.out.println("\nRemoved item is: " + queue.remove());

    System.out.println("\nQueue elements: \n" + queue);
  }
}

Output

Queue elements: 
[10, 20, 30, 40, 50]

Removed item is: 10

Queue elements: 
[20, 30, 40, 50]

Explanation

In the above program, we imported the "java.util.LinkedList" and "java.util.Queue" packages to use the Queue Interface and LinkedList collection respectively. 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 the LinkedList collection and added items to it. Then we removed the first item from the queue using the remove() method and printed the updated queue.