Object-oriented programming · interview question
Which sign most clearly shows that object collaboration is improving compared with one giant main method?
Multiple choiceHardchapter-2-curatedpremiumoopobject-interaction
Answer and explanation
Correct answer
D. Each object contributes one understandable part of the workflow instead of one method knowing everything
Why
A healthier design lets Cart, CartItem, Product, and Customer each answer the questions that match their roles. That is much easier to read than one procedural method that knows every detail of the program.
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…