Quick-guide book to the basic GoF1 design patterns. A book that could be used as a bare bone reference as well as a learning companion for understanding design patterns. So we divided the workload and together we created an up-to-date view of the GoF design patterns in a structured and uniform manner. C Program to Print Pyramids and Patterns In this example, you will learn to print half pyramids, inverted pyramids, full pyramids, inverted full pyramids, Pascal's triangle, and Floyd's triangle in C Programming.
What are Design Patterns?
Design patterns are solutions to software design problems you find again and again in real-world application development. Patterns are about reusable designs and interactions of objects.
Design Patterns C# Book Pdf Reader
The 23 Gang of Four (GoF) patterns are generally considered the foundation for all other patterns. They are categorized in three groups: Creational, Structural, and Behavioral (for a complete list see below). This reference provides source code for each of the 23 GoF patterns.
C# Design Patterns
To give you a head start, the C# source code for each pattern is provided in 2 forms: structural and real-world. Structural code uses type names as defined in the pattern definition and UML diagrams. Real-world code provides real-world programming situations where you may use these patterns.
A third form, .NET optimized, demonstrates design patterns that fully exploit built-in .NET features, such as, generics, delegates, reflection, and more. These and much more are available in our Dofactory .NET product. See the Singleton page for a .NET Optimized example.
Creational Patterns | |
Abstract Factory | Creates an instance of several families of classes |
Builder | Separates object construction from its representation |
Factory Method | Creates an instance of several derived classes |
Prototype | A fully initialized instance to be copied or cloned |
Singleton | A class of which only a single instance can exist |
Structural Patterns | |
Adapter | Match interfaces of different classes |
Bridge | Separates an object’s interface from its implementation |
Composite | A tree structure of simple and composite objects |
Decorator | Add responsibilities to objects dynamically |
Facade | A single class that represents an entire subsystem |
Flyweight | A fine-grained instance used for efficient sharing |
Proxy | An object representing another object |
Behavioral Patterns | |
Chain of Resp. | A way of passing a request between a chain of objects |
Command | Encapsulate a command request as an object |
Interpreter | A way to include language elements in a program |
Iterator | Sequentially access the elements of a collection |
Mediator | Defines simplified communication between classes |
Memento | Capture and restore an object's internal state |
Observer | A way of notifying change to a number of classes |
State | Alter an object's behavior when its state changes |
Strategy | Encapsulates an algorithm inside a class |
Template Method | Defer the exact steps of an algorithm to a subclass |
Visitor | Defines a new operation to a class without change |