What is the benefit of using inheritance?
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What is constructor and virtual function? Can we call virtual funciton in a constructor?
What is overriding?
What is hybrid inheritance?
What is abstraction? How does it differ from encapsulation
What is the use if instanceof keyword? And how do refer to a current instance of object?
What are extrinsic and intrinsic connections in object-oriented programming?
What are inner classes and what is the practical implementation of inner classes?
USECASE is an implementation independent notation. How will the designer give the implementation details of a particular USECASE to the programmer?
Explain persistence?
Explain the use of Vtable and what are the various problems to override the functions?
Explain about instance in object oriented programming?
What are the access modifiers?
Design Patterns 
