using System;

public class Program

{

    public static void Main()

    {

        var instance = LazySingleton.Instance;

    }

}

​

​

public class LazySingleton

{

    private static readonly Lazy<LazySingleton> _instance =

        new Lazy<LazySingleton>(() =>{ Console.WriteLine("initialized");return new LazySingleton();});

    public static LazySingleton Instance

    {

        get { return _instance.Value; }

    }

​

    private LazySingleton()

    {

    }

}