Queue.Dequeue() method with example in C#

C# Queue.Dequeue() technique: Here, we will find out about the Dequeue() strategy for Queue class in C#.

C# Queue.Dequeue() technique

Queue.Dequeue() technique is utilized to expel an item/component from the earliest starting point of the Queue and returns that article/component.

Syntax:

    Object Queue.Dequeue();

Parameters: None

Return value: Object – it restores the item/component to be evacuated.

Example:

    declare and initialize a Queue:
    Queue que = new Queue();   

    insertting elements:
    que.Enqueue(100);
    que.Enqueue(200);
    que.Enqueue(300);
    que.Enqueue(400);
    que.Enqueue(500);
    
    removing elements from Queue:
    que.Dequeue();
    que.Dequeue();
    que.Dequeue();

    Output:
    400 500

C# example to evacuate an article/component from the Queue utilizing Queue.Dequeue() strategy

using System;
using System.Text;
using System.Collections;

namespace Test
{
    class Program
    {
        //function to print queue elements
        static void printQueue(Queue q)
        {
            foreach (Object obj in q)
            {
                Console.Write(obj + " ");
            }
            Console.WriteLine();
        }

        static void Main(string[] args)
        {
            //declare and initialize a Queue
            Queue que = new Queue();

            //insertting elements
            que.Enqueue(100);
            que.Enqueue(200);
            que.Enqueue(300);
            que.Enqueue(400);
            que.Enqueue(500);

            //printing queue elements
            Console.WriteLine("Queue elements are...");
            printQueue(que);

            //removing elements from Queue
            Console.WriteLine(que.Dequeue() + " is removed...");
            Console.WriteLine(que.Dequeue() + " is removed...");
            Console.WriteLine(que.Dequeue() + " is removed...");

            //printing queue elements after removing elements
            Console.WriteLine("Queue elements are...");
            printQueue(que);

            //hit ENTER to exit
            Console.ReadLine();
        }
    }
}

Output

Queue elements are...
100 200 300 400 500
100 is removed...
200 is removed...
300 is removed...
Queue elements are...
400 500