public static OldSingleton Instance()
{
if (_instance == null)
{
_instance = new OldSingleton();
}
return(_instance);
}
static void Main(string[] args)
{
OldSingleton os1 = OldSingleton.Instance();
OldSingleton os2 = OldSingleton.Instance();
os1.Name = "This is old singleton class!!";
Console.WriteLine(os2.Name);
NewSingleton ns1 = NewSingleton.Instance();
NewSingleton ns2 = NewSingleton.Instance();
ns1.Name = "This is new singleton class!!";
Console.WriteLine(ns2.Name);
OptimizeSingleton ops1 = OptimizeSingleton.Instance();
OptimizeSingleton ops2 = OptimizeSingleton.Instance();
ops1.Name = "This is new C# optimize singleton class!!";
Console.WriteLine(ops2.Name);
Console.ReadKey();
}