好久没来了。散分，23类设计模式。必须要有代码说明

class singleton{   private singleton()   {}   public static singleton getInstance = new singleton();}
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帮顶 楼主万岁 嘿嘿、
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接分来的
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看出来了。。。纯散分的~
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帮顶，LZ好人，多给点哈
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纯散分的
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路过 顺便接个分 (*^__^*) 嘻嘻……
谢谢楼主
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迭代器模式

C# code
foreach(var item in (new List<int>(){ 1 , 2 , 3 })){    Console.WriteLine(item);}
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   简单工厂...
           路过。
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简单抽象工厂
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工厂模式
public class DaoFactory {
	
	private static UserDao userDao = null;
	private static DaoFactory instance = new DaoFactory();

	private DaoFactory() {
		try {
			Properties prop = new Properties();
			
			InputStream inStream = DaoFactory.class.getClassLoader()
					.getResourceAsStream("daoconfig.properties");
			
			prop.load(inStream);
			String userDaoClass = prop.getProperty("userDaoClass");
			Class clazz = Class.forName(userDaoClass);
			userDao = (UserDao) clazz.newInstance();
		} catch (Throwable e) {
			throw new ExceptionInInitializerError(e);
		}
	}

	public static DaoFactory getInstance() {
		return instance;
	}

	public UserDao getUserDao() {
		return userDao;
	}
}

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观察者模式

C# code
public class Button{    public event EventHandler Click;}
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单态模式
private static singlet instance=new singlet();
public static singlet getinstance{
return instance;}
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探讨


有多少人能在不参考资料的情况下完整的写出抽象工厂的代码（包括伪代码，uml图）。能写出来的请举手。

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命令模式:

// Command pattern -- Structural example　  
using System;  
// "Command"  
abstract class Command  
{  
　// Fields  
　protected Receiver receiver;  
　// Constructors  
　public Command( Receiver receiver )  
　{  
　　this.receiver = receiver;