Object-oriented programming · interview question
Why is reserve(int amount) usually safer than a generic setStock(int newStock) method?
Multiple choiceMediumchapter-3-curatedpremiumoopcontrolled-mutation
Answer and explanation
Correct answer
A. Because it expresses the business action and can validate the transition properly
Why
reserve(...) tells the story of what is happening and gives the class a place to reject impossible requests. A generic setter often exposes too much mutation power without enough business context.
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