Core Java · interview question
What is one main purpose of using interfaces in Java?
Multiple choiceEasychapter-5-curatedpremiumcore-javacode-reading-with-related-types
Answer and explanation
Correct answer
D. To allow multiple inheritance of type.
Why
Interfaces allow a class to inherit from multiple types, which facilitates multiple inheritance of type, thus enabling polymorphic behavior without the complexity of multiple inheritance of implementation.
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?