Core Java · interview question
In a class Cart, you find a method calculateDiscount() that accesses another class's private fields directly. What is a better design approach?
Multiple choiceHardchapter-2-curatedpremiumcore-javacode-reading-and-refactoring-to-objects
Answer and explanation
Correct answer
D. Use public methods from the other class to access its data.
Why
Accessing another class's private fields directly violates encapsulation. Using public methods to access the data ensures that the class's internal representation remains hidden and controlled.
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