Object-oriented programming · interview question
If two CartItem objects hold references to the same Product object and one CartItem changes the Product's price, what happens?
Multiple choiceMediumchapter-2-curatedpremiumoopobject-references
Answer and explanation
Correct answer
D. Both CartItems will see the updated price.
Why
Since both CartItem objects hold references to the same Product object, any changes made to the Product through one CartItem will be visible to the other.
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…