[Solved] Which of the following statements about the Single Responsibility Principle is INCORRECT? - Ans: SRP means a class should only have one method to ensure simplicity. | OOP & Design Patterns

OOP & Design Patterns - Single Responsibility Principle - One Class, One Reason to Change

Which of the following statements about the Single Responsibility Principle is INCORRECT?

ASRP means a class should only have one method to ensure simplicity.

BApplying SRP improves cohesion and reduces coupling.

CA class should have only one reason to change, which means it should have only one responsibility.

DViolating SRP can lead to fragile code that breaks when unrelated changes occur.

Step-by-Step Solution

Step 1: Analyze each statement
A class should have only one reason to change, which means it should have only one responsibility. correctly states the core SRP definition.
Step 2: Evaluate SRP means a class should only have one method to ensure simplicity.
SRP is about reasons to change, not the number of methods; a class can have many methods if they serve one responsibility.
Step 3: Confirm options A, B, and D
Options A, B, and D are true: SRP improves cohesion, reduces coupling, and prevents fragile code.
Final Answer:
Option A -> Option A
Quick Check:
SRP ≠ one method per class; it's about one reason to change.

Quick Trick: SRP is about reasons to change, not method count.

Common Mistakes:

MISTAKES

Trap Explanation:

PITFALL

Option C is incorrect because SRP focuses on reasons to change, not method quantity.

Interviewer Note:

CONTEXT

Tests candidate's ability to distinguish SRP's true meaning from common misconceptions.

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