C# Generics sample

generics.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace SimpleGenericsTest
{
    /// <summary>
    /// Generic registration class
    /// </summary>
    /// <typeparam name="T">Type to register</typeparam>
    public class Register<T>
    {
        private List<T> _list = new List<T>();

        public void Add(T input)
        {
            _list.Add(input);
        }

        public void Print()
        {
            foreach (var item in _list)
            {
                Console.WriteLine(item.ToString());
            }
        }
    }

    /// <summary>
    /// Simple registrar class
    /// </summary>
    public class Registrar
    {
        public string Name { get; set; }

        public override string ToString()
        {
            return Name;
        }
    }
    
    class Program
    {
        static void Main(string[] args)
        {
            // registers some registrars and prints them
            Register<Registrar> registrars = new Register<Registrar>();
            registrars.Add(new Registrar { Name = "Risto Reipas" });
            registrars.Add(new Registrar { Name = "Erno Perälä" });
            Console.WriteLine("Registrars: ");
            registrars.Print();

            Console.WriteLine();

            // I can also register ints or other types if I like...
            Register<int> ints = new Register<int>();
            ints.Add(1);
            ints.Add(2);
            ints.Add(3);
            Console.WriteLine("Ints: ");
            ints.Print();

            Console.ReadLine();

            // Outputs:
            /*
            Registrars:
            Risto Reipas
            Erno Perälä

            Ints:
            1
            2
            3
            */
        }
    }
}