Core Java · interview question
What happens if a class implements two interfaces, each with a default method with the same signature?
Multiple choiceEasychapter-5-curatedpremiumcore-javadefault-methods-and-multiple-inheritance
Answer and explanation
Correct answer
A. The class must override the method to resolve the conflict.
Why
When a class implements two interfaces with conflicting default methods, it must override the method to provide its own implementation and resolve the conflict.
Test yourself on Core Java
A free test with instant, explained results. No account needed.
More Core Java questions
- In a console shopping cart application, why might you separate input handling from calculations?
- What happens if a subclass does not implement an abstract method from its superclass?
- Why would you choose to use a switch statement instead of multiple if-else statements for handling order status?
- Which part of the following code is responsible for avoiding an off-by-one error?
- Why can using overly complex methods in an e-commerce application become a problem in production code?
- How can a class implementing an interface with a default method call that method from within an overridden method?