Inheritance and Composition Interview Questions | OOPS | NextRound

1What is the difference between 'Overriding' and 'Hiding/Method Shadowing'?Intermediate

2Why does Java/C# not support Multiple Inheritance of classes? (The Diamond Problem)Intermediate

3What is the difference between 'IS-A' (Inheritance) and 'HAS-A' (Composition)?Intermediate

4How do you solve the Diamond Problem? (Interfaces/Mixins)Intermediate

5What is the purpose of the base or super keyword?Intermediate

6Why is Composition often preferred over Inheritance? (Fragile Base Class problem)Intermediate

7What is Inheritance? What is the 'IS-A' relationship?Intermediate

8Can you prevent a class from being inherited? How? (Sealed/Final)Beginner

9What are the different types of Inheritance? (Single, Multilevel, Hierarchical)Intermediate

10Can you change the access modifier of a base class method in a derived class? (Hiding vs Overriding)Intermediate

11Can a subclass access the private members of its parent class?Beginner

12What happens if a Base class constructor throws an exception? Does the Derived object get created?Intermediate