using System; using System.Collections.Generic; public class Bag<T> { private List<T> items = new List<T>(); public void Add(T item) { items.Add(item); } public T Remove() { T item = default(T); if (items.Count != 0) { Random r = new Random(); int num = r.Next(0, items.Count); item = items[num]; items.RemoveAt(num); } return item; } public T[] RemoveAll() { T[] i = items.ToArray(); items.Clear(); return i; } } public class MainClass { public static void Main(string[] args) { Bag<string> bag = new Bag<string>(); bag.Add("D"); bag.Add("B"); bag.Add("G"); bag.Add("M"); bag.Add("N"); bag.Add("I"); Console.WriteLine("Item 1 = {0}", bag.Remove()); Console.WriteLine("Item 2 = {0}", bag.Remove()); Console.WriteLine("Item 3 = {0}", bag.Remove()); Console.WriteLine("Item 4 = {0}", bag.Remove()); string[] s = bag.RemoveAll(); } }