Why are virtual users created?
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Explain method overriding.
Explain the mechanism of composition?
What is the main difference between overloading and overriding?
What are all the languages which support oop?
What is the practical implementation of inner classes?
What is difference between encapsulation and abstraction?
Define exceptions?
What is the difference between class and interface?
What are the features of encapsulation ?
What do you mean by "explicitly implemeting an interface". Give an example?
Explain the rationale behind object oriented concepts?
What is the difference between class inheritance and interface inheritance?