Core Java · interview question
Consider the class Product with a method applyDiscount(double discount). If the discount calculation logic is complex and used in multiple places, what is a recommended design pattern to apply?
Multiple choiceHardchapter-2-curatedpremiumcore-javacode-reading-and-refactoring-to-objects
Answer and explanation
Correct answer
A. Extract the logic into a separate class.
Why
Extracting the discount calculation logic into a separate class improves reusability and adheres to the single responsibility principle. This approach allows for easier maintenance and testing.
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