Give any criteria when you use an abstract class and an interface?
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Are constructors inherited? Can a subclass call the parent's class constructor? When?
Explain method overriding.
What is the practical implementation of inner classes?
What is composition? Explain the purpose of composition.
Why use oops?
What is the main use of message metaphor in object-oriented programming?
What is the super keyword?
What is the difference between class inheritance and interface inheritance?
Explain about inheritance?
Why is OOP good?
What is the difference between function overloading and over riding?
What is virtual?