public static void Applay()
{
Singleton1 s;
s = Singleton1.GetInstance();
Console.WriteLine(s.ToString());
Console.WriteLine(s.GetHashCode());
var b = Singleton1.GetInstance();
if (s == b) ///s.Equals(b))
{
Console.WriteLine("Objects are equals");
}
else
{
Console.WriteLine("Objects are not equals");
}
Console.WriteLine(b.GetHashCode());
/*
* Console.WriteLine("Multithreding problems:");
*
* (new Thread(() =>
* {
* var d = Singleton1.GetInstance();
* Console.WriteLine($"d {d.GetHashCode()}");
* var e = Singleton1.GetInstance();
* Console.WriteLine($"e {d.GetHashCode()}");
* })).Start();
*
* var c = Singleton1.GetInstance();
* Console.WriteLine($"c {c.GetHashCode()}");
*
* var c1 = Singleton1.GetInstance();
* Console.WriteLine($"c1 {c1.GetHashCode()}");
*/
Console.WriteLine("Singleton 2");
(new Thread(() =>
{
var d = Singleton2.GetInstance();
Console.WriteLine($"d {d.GetHashCode()}");
var e = Singleton1.GetInstance();
Console.WriteLine($"e {d.GetHashCode()}");
})).Start();
{
var c = Singleton2.GetInstance();
Console.WriteLine($"c {c.GetHashCode()}");
var c1 = Singleton1.GetInstance();
Console.WriteLine($"c1 {c1.GetHashCode()}");
}
}
public static Singleton2 GetInstance()
{
if (_instance == null)
{
lock (syncRoot)
{
if (_instance == null)
{
_instance = new Singleton2();
}
}
}
return(_instance);
}
