Queue.Enqueue
using System; using System.Collections; using System.Collections.Generic; using System.Text; class Program { static void Main(string[] args) { Queue alphabet = new Queue(); alphabet.Enqueue("A"); alphabet.Enqueue("B"); alphabet.Enqueue("C"); Console.Write("First Iteration: "); foreach (string item in alphabet) { Console.Write(item); } Console.WriteLine("\nItem pulled from collection: " + alphabet.Dequeue().ToString()); Console.Write("Second iteration: "); foreach (string item in alphabet) { Console.Write(item); } } }