Elements of Reusable Object-Oriented Software is a software engineering book describing software design patterns. The book's authors are Erich Gamma, Richard Helm, Ralph Johnson and John Vlissides with a foreword by Grady Booch. The book is divided into two parts, with the first two chapters exploring the capabilities and pitfalls of object-oriented programming, and the remaining chapters describing 23 classic software design patterns.
| Creational | Structural | Behavioral |
|---|---|---|
| Abstract Factory | Adapter | Chain of Responsibility |
| Builder | Bridge | Command |
| Factory Method | Composite | Interpreter |
| Prototype | Decorator | Iterator |
| Singleton | Facade | Mediator |
| Flyweight | Memento | |
| Proxy | Observer | |
| State | ||
| Strategy | ||
| Template | ||
| Visitor |
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