Object-oriented programming · interview question
Why do teams use getters and setters in a class in production code?
Multiple choiceEasychapter-3-curatedpremiumoopinvariants-and-validation
Answer and explanation
Correct answer
A. They allow controlled access to private fields
Why
Getters and setters provide controlled access to private fields, allowing the class to enforce rules and invariants when its data is accessed or modified. This encapsulation mechanism is fundamental for maintaining the integrity and consistency of an object's state.
Test yourself on Object-oriented programming
A free test with instant, explained results. No account needed.
More Object-oriented programming questions
- In a typical e-commerce application, how should a CartItem object access the price of a Product?
- What design principle is violated if a Cart class directly manipulates a Product's price?
- Why might CartItem hold a Product reference instead of copying every product field into loose variables?
- In the context of e-commerce, which class is most likely to contain a method called calculateTotalPrice()?
- What access modifier should be used for fields to adhere to encapsulation principles?
- How would you explain a key reason to use encapsulation when designing an object with multiple responsibilities in an…