Java design patterns : a tour of 23 gang of four design patterns in Java Learn how to implement design patterns in Java: each pattern in Java Design Patterns is a complete implementation and the output is generated using Eclipse making the code accessible to all. The examples are chosen so you will be able to absorb the core concepts easily and quickly. This book presents the topic of design patterns in Java in such a way that anyone can grasp the idea. By giving easy to follow examples you will understand the concepts with increasing depth. The examples presented are straightforward and the topic is presented in a concise manner. Key features of the book: Each of the 23 patterns is described with straightforward Java code. There is no need to know advanced concepts of Java to use this book. Each of the concepts is connected with a real world example and a computer world example. The book uses Eclipse IDE to generate the output because it is the most popular IDE in this field. This is a practitioners book on design patterns in Java. Design patterns are a popular topic in software development. A design pattern is a common well described solution to a common software problem. There is a lot of written material available on design patterns but scattered and not in one single reference source. Also many of these examples are unnecessarily big and complex. 1.Introduction 2.Observer Pattern 3. Singleton Pattern 4. Proxy Pattern 5.Decorator Pattern 6. Strategy Pattern (Or Policy Pattern) 7. Template Method Pattern 8. Prototype Pattern 9. Adapter Pattern 10. Command Pattern 11.Iterator Pattern 12. Facade Pattern 13. Factory Method Pattern 14. Memento Pattern 15. State Pattern 16. Builder Pattern 17. Flyweight Pattern 18.Abstract Factory Pattern 19. Mediator Pattern 20. Chain of Responsibility Pattern 21. Composite Pattern 22. Bridge Pattern (Or Handle Body Pattern) 23.Visitor Pattern 24. Interpreter Pattern FAQ Reference. Acknowledgments About the Author