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SW Architecture (Patterns (Strategy Pattern (Advantage of using it:…

- - - - Reduce long lists of conditions
      - Avoid duplicate code
      - Used when you need to change behavior of a class at run-time
      - When you want to define a class that will have one behavior that is similar to other behavior in a list.
    - - Separations of concerns
      - Design to interface to implement
      - Encapsulate principle
      - Change behavior dynamically
  - - - create an abstract class that contains methods call template method.
      - Template method contains a series of method calls that every sub-class object will call.
      - The sub-classes can override some methods that needs to be changed from the super class.