Multiple ChoiceBeginner 45s
SRP: finding the second reason to change
A class Invoice totals line items AND formats a PDF AND sends it by email. Which statement best captures the Single Responsibility Principle violation?
Options
- 1Three distinct actors (accounting, reporting, mail) can request changes, so the class has more than one reason to change
- 2The class exposes three public methods. SRP therefore demands splitting it into three classes. One class per method is the required fix.
- 3The class spans too many lines and fields. Its sheer physical size is what violates SRP. The rule is about file length, not reasons to change.
- 4SRP requires exactly one public method per class. Every other responsibility must be made private. A second method breaks the principle.
Think you can answer under pressure?
Get matched and answer live questions in 3-minute 1v1 battles. Elo ranking, badge tiers and bragging rights on the line.