private static void PrintS2()
{
SingletonThreadSafety s2 = SingletonThreadSafety.GetInstance;
s2.PrintDetails("From Singleton Thread Safety S2");
}
//SINGLETON THREAD SAFETY
private static void PrintS1()
{
SingletonThreadSafety s1 = SingletonThreadSafety.GetInstance;
s1.PrintDetails("From Singleton Thread Safety S1");
}