static void Main(string[] args)
{
SingletonV1 v1Instance1 = SingletonV1.Instance;
SingletonV1 v1Instance2 = SingletonV1.Instance;
SingletonV1 v1Instance3 = SingletonV1.Instance;
Console.WriteLine($"v1Instance1 is equal to v1Instance2: {ReferenceEquals(v1Instance1, v1Instance2)}");
Console.WriteLine($"v1Instance2 is equal to v1Instance3: {ReferenceEquals(v1Instance2, v1Instance3)}");
SingletonV2 v2Instance1 = SingletonV2.Instance;
SingletonV2 v2Instance2 = SingletonV2.Instance;
SingletonV2 v2Instance3 = SingletonV2.Instance;
Console.WriteLine($"v2Instance1 is equal to v2Instance2: {ReferenceEquals(v2Instance1, v2Instance2)}");
Console.WriteLine($"v2Instance2 is equal to v2Instance3: {ReferenceEquals(v2Instance2, v2Instance3)}");
SingletonV3 v3Instance1 = SingletonV3.Instance;
SingletonV3 v3Instance2 = SingletonV3.Instance;
SingletonV3 v3Instance3 = SingletonV3.Instance;
Console.WriteLine($"v3Instance1 is equal to v3Instance2: {ReferenceEquals(v3Instance1, v3Instance2)}");
Console.WriteLine($"v3Instance2 is equal to v3Instance3: {ReferenceEquals(v3Instance2, v3Instance3)}");
Console.WriteLine("Press <Enter> to exit...");
Console.Read();
}
public static SingletonV1 Instace()
{
if (instance == null)
{
lock (mutex)
{
if (instance == null)
{
instance = new SingletonV1();
}
}
}
return(instance);
}
