using System;

public class Program

{

    public static void Main()

    {

        Singleton object1 = Singleton.Instance();

        Singleton object2 = Singleton.Instance();

        if (object1 == object2)

            Console.WriteLine("They're the same instance!");

    }

}

​

/// <summary>

/// The Singleton class.

/// </summary>

class Singleton

{

    private static Singleton myInstance;

​

    private Singleton() { }

​

    public static Singleton Instance()

    {

        if (myInstance == null)

            myInstance = new Singleton();

        return myInstance;

    }

}