[Solved] What is the primary purpose of the Payment Strategy Pattern in software design? — Ans: To allow multiple payment methods to be interchangeable without changing client... | LLD

LLD - Design — Online Shopping Cart

What is the primary purpose of the Payment Strategy Pattern in software design?

ATo store payment details securely in a database

BTo allow multiple payment methods to be interchangeable without changing client code

CTo encrypt payment transactions end-to-end

DTo generate invoices automatically after payment

Step-by-Step Solution

Solution:

Step 1: Understand the role of strategy pattern
The strategy pattern allows selecting an algorithm's behavior at runtime without changing the client code.
Step 2: Apply this to payment methods
Payment strategy pattern lets different payment methods be used interchangeably by the client without modifying its code.
Final Answer:
To allow multiple payment methods to be interchangeable without changing client code -> Option B
Quick Check:
Payment Strategy Pattern purpose = Interchangeable payment methods [OK]

Quick Trick: Strategy pattern enables flexible payment method swapping [OK]

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What is the primary purpose of the Payment Strategy Pattern in software design?