About Design Patterns
This Design Patterns refcard provides a quick reference to the original 23 Gang of Four design patterns, as listed in the book Design Patterns: Elements of Reusable Object-Oriented Software. Each pattern includes class diagrams, explanation, usage information, and a real world example.
- Creational Patterns: Used to construct objects such that they can be decoupled from their implementing system.
- Structural Patterns: Used to form large object structures between many disparate objects.
- Behavioral Patterns: Used to manage algorithms, relationships, and responsibilities between objects.
- Object Scope: Deals with object relationships that can be changed at runtime.
- Class Scope: Deals with class relationships that can be changed at compile time.
C | Abstract Factory | S | Decorator | C | Prototype |
S | Adapter | S | Facade | S | Proxy |
S | Bridge | C | Factory Method | B | Observer |
C | Builder | S | Flyweight | C | Singleton |
B | Chain Of Responsibility | B | Interpreter | B | State |
B | Command | B | Mediator | B | Template Method |
S | Composite | B | Memento | B | Visitor |
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