Object-oriented programming · interview question
Why might an abstract class contain both abstract and concrete methods?
Multiple choiceHardchapter-5-curatedpremiumoopabstract-classes
Answer and explanation
Correct answer
D. To provide default behavior while enforcing specific behaviors in subclasses.
Why
An abstract class can provide default implementations through concrete methods while requiring subclasses to implement specific behaviors via abstract methods. This allows flexibility and consistency.
Test yourself on Object-oriented programming
A free test with instant, explained results. No account needed.
More Object-oriented programming questions
- What happens if a subclass does not implement all abstract methods from its abstract superclass?
- What does the 'this' keyword refer to within an instance method of a class?
- Which Java keyword would you use to declare an abstract class in Java?
- Which statement correctly creates an instance of the 'Product' class?
- How does using interfaces in Java promote flexibility in application design?
- In Java, why might composition be preferred over inheritance when designing a class to calculate discounts for…