DesignPatterns

A.Creational Design Patterns

1. Factory:Creates an instance of several derived classes
2. Abstract Factory:Creates an instance of several families of classes
3. Singleton:A class of which only a single instance can exist
4. Builder:Separates object construction from its representation
5. Prototype:A fully initialized instance to be copied or cloned
6. Object Pool

B.Structural Design Patterns

7. Decorator: Add responsibilities to objects dynamically
8. Adapter: Match interfaces of different classes
9. Facade: A single class that represents an entire subsystem
10. Bridge: Separates an object’s interface from its implementation
11. Composite: A tree structure of simple and composite objects
12. Flyweight: A fine-grained instance used for efficient sharing
13. Proxy: An object representing another object

C.Behavioral Design Patterns

14. Chain of Responsibility: A way of passing a request between a chain of objects
15. Command: Encapsulate a command request as an object
16. Interpreter: A way to include language elements in a program
17. Mediator: Defines simplified communication between classes
18. Memento: Capture and restore an object's internal state
19. Observer: A way of notifying change to a number of classes
20. State: Alter an object's behavior when its state changes
21. Strategy: Encapsulates an algorithm inside a class
22. Template Method: Defer the exact steps of an algorithm to a subclass
23. Iterator: Sequentially access the elements of a collection
24. Visitor: Defines a new operation to a class without change