Now what will happen in case anyone else come up with the same problem may be your friend or anyone to whom you know, but you are not available to him/her, he/she will go the way of process as you gone through, when you got the problem at first time. Here your friend have wasted the time again, so to minimizing the time from recurring problems, documenting the solution is called DESIGN PATTERN.
Following are the three categorization of Design Patterns
Creational Patterns: It provide solution to problem of objects create rather than having you instantiate objects directly. Which provide your application flexibility to create objects for application in given scenario.
Structural Patterns help you compose groups of objects into larger structures, such as complex user interfaces or accounting data.
Behavioral Patterns help you define the communication between objects in your system and how the flow is controlled in a complex program.
- Chain of Responsibility
- Template Method
- Business Delegate
- Composite Entity
- Data Access Object
- Front Controller
- Intercepting Filter
- Service Locator
- Transfer Object
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