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The Catalog of Design Patterns

Creational patterns

These patterns provide various object creation mechanisms, which increase flexibility and reuse of existing code.

Factory Method Factory Method Abstract Factory Abstract Factory Builder Builder Prototype Prototype Singleton Singleton

Structural patterns

These patterns explain how to assemble objects and classes into larger structures while keeping these structures flexible and efficient.

Adapter Adapter Bridge Bridge Composite Composite Decorator Decorator Facade Facade Flyweight Flyweight Proxy Proxy

Behavioral patterns

These patterns are concerned with algorithms and the assignment of responsibilities between objects.

Chain of Responsibility Chain of Responsibility Command Command Iterator Iterator Mediator Mediator Memento Memento Observer Observer State State Strategy Strategy Template Method Template Method Visitor Visitor