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Design Pattern in Java

Overview

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A design patterns are well-proved solution for solving the specific problem/task.

By using the design patterns you can make your code more flexible, reusable and maintainable. It is the most important part because java internally follows design patterns.

To become a professional software developer, you must know at least some popular solutions (i.e. design patterns) to the coding problems.

Pros

  • They are reusable in multiple projects.
  • They provide the solutions that help to define the system architecture.
  • They capture the software engineering experiences.
  • They provide transparency to the design of an application.
  • They are well-proved and testified solutions since they have been built upon the knowledge and experience of expert software developers.
  • Design patterns don’t guarantee an absolute solution to a problem. They provide clarity to the system architecture and the possibility of building a better system.

Types of Design Patterns