Design Patterns

-> are optimized reusable solutions to the programming problems that we encounter every day.
-> Generic solutions to the common problems which are encountered in object oriented software design.

Creational
-> Creational patterns provide instantiation mechanisms, making it easier to create objects in a way that suits the situation.

  • Singleton
  • Factory Method
  • Abstract Factory
  • Builder
  • Prototype

Structural
-> Structural patterns generally deal with relationships between entities, making it easier for these entities to work together.

  • Adaptor
  • Façade
  • Proxy
  • Bridge
  • Composite
  • Decorator
  • Flyweight

Behavioral
-> Behavioral patterns are used in communications between entities and make it easier and more flexible for these entities to communicate.

  • Observer
  • Command

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