Object-oriented programming · interview question
If a Product class in an e-commerce system includes a 'discountRate' field, why might you prefer a method like 'applyDiscount()' over a setter?
Multiple choiceHardchapter-3-curatedpremiumoopgetters-and-setters-design
Answer and explanation
Correct answer
A. To encapsulate the logic for calculating the final price.
Why
By using a method like 'applyDiscount()', you can encapsulate the logic for calculating the final price with the discount applied, ensuring the computation follows specific business rules and avoids errors that might occur with direct field manipulation.
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