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Java program to print Queue elements using 'foreach' loop

Java example to print Queue elements using 'foreach' loop.
Submitted by Nidhi, on April 27, 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 access queue elements using the forecah loop and print them.

Source Code

The source code to print queue elements using the foreach loop is given below. The given program is compiled and executed successfully.

// Java program to print queue elements 
// using foreach loop

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: ");
    for (int item: queue) {
      System.out.print(item + " ");
    }

  }
}

Output

Queue elements: 
10 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 accessed queue elements using the foreach loop and printed the result.

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