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Chapter 04 Simple Factory	https://patch-diff.githubusercontent.com/geguol/design-pattern-java-source-code/tree/master/Chapter%2004%20Simple%20Factory
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Chapter 09 Singleton	https://patch-diff.githubusercontent.com/geguol/design-pattern-java-source-code/tree/master/Chapter%2009%20Singleton
Chapter 10 Adapter	https://patch-diff.githubusercontent.com/geguol/design-pattern-java-source-code/tree/master/Chapter%2010%20Adapter
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Chapter 14 Facade	https://patch-diff.githubusercontent.com/geguol/design-pattern-java-source-code/tree/master/Chapter%2014%20Facade
Chapter 14 Facade	https://patch-diff.githubusercontent.com/geguol/design-pattern-java-source-code/tree/master/Chapter%2014%20Facade
Chapter 15 Flyweight	https://patch-diff.githubusercontent.com/geguol/design-pattern-java-source-code/tree/master/Chapter%2015%20Flyweight
Chapter 15 Flyweight	https://patch-diff.githubusercontent.com/geguol/design-pattern-java-source-code/tree/master/Chapter%2015%20Flyweight
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