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design pattern is a widely accepted solution to a recurring design problem in OOP
a design pattern describes how to structure classes to meet a given requirement
provides a general blueprint to follow when implementing part of a program
does not describe how to structure the entire application
does not describe specific algorithms
focuses on relationships between classes
design patterns:
make you more productive
help you write cleaner code
Observer and Singleton are just two of the many available
if you like design patterns, try these resources:
GoF book -- Design Patterns: Elements of Reusable Object-oriented Software
design pattern examples in Java, see Design Patterns in Java Reference and Example Site
in summary :D we can say that a design pattern is a general reusable solution to a commonly occurring problem in software design. and it gives the way and relation between the classes and object to solve a certain problem and it doesn't specity the final application
here is a book which Tecno give it tom me
http://www.4shared.com/file/111350944/8be77835/Dummies_-_DesignPattern.html
hope that it will be usefull
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