в 15:31, 26 мая 2010

2010-05-26T15:31:53Z

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2010-05-26T12:17:41Z

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==Singleton Pattern==

<source lang="csharp">using System;
public class SingletonClass
{
private static SingletonClass instance;
static SingletonClass()
{
instance = new SingletonClass();
}
private SingletonClass() { }
public static SingletonClass Instance
{
get { return instance; }
}
public void SomeMethod1() { }
public void SomeMethod2() { }
}
public class MainClass
{
public static void Main()
{
SingletonClass s = SingletonClass.Instance;
s.SomeMethod1();
SingletonClass.Instance.SomeMethod2();
}
}</source>

==Singleton Pattern 2==

<source lang="csharp">using System;
class Client
{
static void Main(string[] args)
{
try{
Engine eng = Engine.GetEngine();
}catch (Exception e){
Console.WriteLine(e.Message);
}

try{
Engine eng = Engine.GetEngine();
}catch (Exception e){
Console.WriteLine(e.Message);
}
}
}
sealed class Engine
{
private static bool instanceFlag = false;
public static Engine GetEngine()
{
if (!instanceFlag)
{
instanceFlag = true;
return new Engine();
}else{
throw new Exception("An engine has already been created!");
}
}
private Engine()
{
Console.WriteLine("An Engine");
}
}</source>

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в 15:31, 26 мая 2010

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