signleton in C#

 public class SingleTonTest
    {
        public static void Test()
        {
            MySingleton.Instance.DO();
            MySingleton.Instance.DO();
        }
    }
    public class MySingleton
    {
        private static MySingleton instance = null;
        static MySingleton()
        {
            Console.WriteLine("Static Constructor called");
        }
        private MySingleton()
        {
            Console.Write("Private conatructor called");
          
        }
        // Lock synchronization object
        private static object myLock = new object();
        public static MySingleton Instance
        {
            get
            {
                lock (myLock)
                {
                    if (instance == null)
                        instance = new MySingleton();
                    return instance;
                }
            }
        }
        public void DO()
        {
            Console.WriteLine("Do your work");
        }
    }