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Friday, 27 December 2013

Strategy Design pattern - Real Time Example [Payment]



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Strategy Design pattern - Real Time Example [Payment]















See also:

  • Strategy Design pattern - Introduction
  • Strategy Design pattern - Real Time Example [Compress files]
  • Strategy Design pattern - Real Time Example [Travel]
  • Strategy Design pattern - Real Time Example [Sorting]
  • Strategy Design pattern - Real Time Example [Search]
  • Strategy Design pattern - Class Diagram
  • Strategy Design pattern - Sequence Diagram
  • Strategy Design pattern - Implementation [Compress files]
  • Strategy Design pattern - Implementation [Travel]
  • Strategy Design pattern - Implementation [Payment]
  • Strategy Design pattern - Implementation [Search]
  • Strategy Design pattern - Implementation [Sort]
  • Strategy Design pattern - KeyPoints
  • All Design Patterns Links
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    1 comment:

    1. upskillgenerativeai.com28 July 2025 at 23:50

      Excellent real‑world scenario and explanation of the Strategy Design Pattern in action!

      I appreciate how you walk through a real-time use case, where the Context class delegates algorithmic behavior to interchangeable Strategy implementations. Using, say, different payment or shipping calculation strategies is exactly the kind of scenario where this pattern shines—clean, modular, and flexible code instead of tangled if-else logic.

      Your explanation echoes how frameworks like Java’s Comparator interface support dynamic sorting strategies at runtime—effortless switching without modifying the core client logic
      en.wikipedia.org
      digitalocean.com
      . And I also liked how you pointed out that in modern Java (Java 8+), lambdas can serve as lightweight alternatives to full strategy classes—making it even more concise and expressive
      refactoring.guru
      .

      This helps clarify not just what the pattern is, but why it's effective—promoting loose coupling, adhering to the open–closed principle, and making future extensions easy and safe
      en.wikipedia.org
      geeksforgeeks.org
      . Thanks for making a classic design pattern so approachable—I feel better equipped to apply it in my own projects!

      This comment:

      Acknowledges the real‑time example.

      Ties to both classical and modern Java uses.

      Highlights design principles like loose coupling and open–closed.

      Feels informed, respectful, and appreciative.


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