AllenYoung

很难想象一本写DesignPattern的书会在Amazon排行榜上雄踞半年之久，但是《Head First DesignPattern》做到了。我曾经狂搜过这本书的电子版，但是只有一个数码相机照下来的版本，很不爽，后来因为写论文的原因，就去买了一本影印版来看，一发而不可收拾。真的是好书！任何一个读过GOF的《DesignPattern》的人都会因为书中所写的蹩脚的措词和一大堆道理而感...

所有的design pattern都是遵循一些designprinciple的，这些design principle的不同组合造就了不同的design pattern。所以，要掌握designpattern，就要熟悉这些design principle，并能自如的组合它们。Design Principle:（不断更新中）1.  Identify the aspects of your ...

这实际上是对Observer模式中使用push方式还是pull方式的讨论，我从第一句话就开始笑个不停了，你要不要来试试看？Subject: I'm glad we're finally getting a chance to chat in person.Observer: Really? I thought you didn't care much about us Observers....

“Decorator的招供”，用采访的方式讨论了Decorator模式的缺点，这本书中处处都是这种恰当的拟人写法。HeadFirst: Welcome Decorator Pattern. We’ve heard that you’ve been a bit down on yourself lately?Decorator: Yes, I know the world sees me as...

这次的话题是Factory Method和Abstract Facotry的不同之处以及使用它们的正确时机。HeadFirst: Wow, an interview with twopatters at once! This is a first for us.Factory Method: Yeah, I’m not so sure Ilike being lumped in wit...

HeadFirst: Today we are pleased to bring you an interview with aSingleton object. Why don’t you begin by telling us a bit aboutyourself?Singleton: Well, I’m totally unique; there is just one of me...

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