Design Patterns

	A	B
1	Abstract Factory	Creates an instance of several families of classes
2	Adapter	Match interfaces of different classes
3	Bridge	Separates an object\u2019s interface from its implementation
4	Builder	Separates object construction from its representation
5	Chain of Responsibility	A way of passing a request between a chain of objects
6	Command	Encapsulate a command request as an object
7	Composite	A tree structure of simple and composite objects
8	Decorator	Add responsibilities to objects dynamically
9	Facade	A single class that represents an entire subsystem
10	Factory Method	Creates an instance of several derived classes
11	Flyweight	A fine-grained instance used for efficient sharing
12	Interpreter	A way to include language elements in a program
13	Iterator	Sequentially access the elements of a collection
14	Mediator	Defines simplified communication between classes
15	Memento	Capture and restore an object's internal state
16	Observer	A way of notifying change to a number of classes
17	Prototype	A fully initialized instance to be copied or cloned
18	Proxy	An object representing another object
19	Singleton	A class of which only a single instance can exist
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	Visitor	Defines a new operation to a class without change
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