Program to insert element in queue using Enqueue method in C#

using System;
using System.Collections;

namespace ConsoleApplication1
{
    
    class Program
    {
        static void Main()
        {
            Queue Q = new Queue(5);

            Q.Enqueue(10);
            Q.Enqueue(20);
            Q.Enqueue(30);
            Q.Enqueue(40);

            Console.WriteLine("Items are added or enqueued into Queue.");

        }
    }
}

Output

Items are added or enqueued into Queue.

In this program, we are adding 4 items into queue that 10,20,30,40 respectively by creating object of Queue class.

Note: In above program, to use 'Queue' class, we need to include System.Collection namespace.