What is an interface?
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Tell me something about abstract classes?
Differentiate between a class and a method.
Explain about a class?
what is full form OOP?
Explain about polymorphism?
Whether static method can use nonstatic members?
Can we have default method with same name and signature in the derived interface as the static method in base interface and vice versa?
What is sealed modifiers?
What is a pure virtual function?
What are the methods required to create changes in subclasses?
What is the use if instanceof keyword?
Explain about object oriented databases?