static void Main(string[] args)
{
var boiler = ChocolateBoiler.GetInstance();
boiler.Fill();
boiler.Boil();
boiler.Drain();
// will return the existing instance
var boiler2 = ChocolateBoiler.GetInstance();
// Are they the same?
if (boiler == boiler2)
{
Console.WriteLine("Same instances");
}
var s1 = Singleton.GetInstance();
var s2 = Singleton.GetInstance();
var s3 = Singleton.GetInstance();
if (s1 == s2 && s2 == s3)
{
Console.WriteLine("Same instances");
}
// Wait for user
Console.ReadKey();
}
public static ChocolateBoiler GetInstance()
{
if (_uniqueInstance == null)
{
Console.WriteLine("Creating unique instance of Chocolate Boiler");
_uniqueInstance = new ChocolateBoiler();
}
Console.WriteLine("Returning instance of Chocolate Boiler");
return(_uniqueInstance);
}
public static ChocolateBoiler GetInstance()
{
if (_uniqueInstance == null)
{
Console.WriteLine("Creating unique instance of Chocolate Boiler");
_uniqueInstance = new ChocolateBoiler();
}
Console.WriteLine("Returning instance of Chocolate Boiler");
return _uniqueInstance;
}