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Answer Posted / sri
What is desing pattern?
Commonly accepted solution for a particular problem is
called design pattern.
We can classify the design patterns into two.
1. Java core patterns.
2. J2ee Design patters.
Core patterns.
1) Creational (Factory pattern, singleton pattern....etc)
2) Structural (Adaptor, Composite... etc)
3) Behavioural(Command, Template, Strategy... etc)
Entepise Patterns. (We can catagoize by layer)
1) Business Facade - Business Layer
2) Business Interface - Business Layer
3) DAO pattern - Persistent Layer
4) Composite View - Presentation Layer
5) synchronized - Presentation Layer
6) Service Locator... etc...
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