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java design patterns tutorial with examples

A design pattern represents the re-usable form of a solution. The idea behind design patterns was first introduced by the architect Christopher Alexander. It is an idea or best practice to solve the common object-oriented design problems and not an implementation.

Advantages of Design patterns:

  1. As design patterns are independent of language so can be applied to any language that supports OOPs.
  2. Design patterns are highly flexible to support any type of application.
  3. Design patterns are already widely used and testified by expert software developers so reduce the technical risk.
  4. As, a design pattern represents the re-usable form of a solution so it can be used in multiple projects.
  5. Design patterns are very useful in defining the software architecture.

Java design patterns

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