Object-oriented programming · interview question
Why does polymorphism reduce caller coupling in Java?
Multiple choiceMediumchapter-5-curatedpremiumooppolymorphism
Answer and explanation
Correct answer
C. It allows code to depend on abstractions rather than specific implementations
Why
Polymorphism allows code to depend on abstractions, like interfaces or superclass types, rather than specific implementations. This reduces coupling because the code using the abstraction doesn't need to know about the specific classes that implement it.
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…