Can I implement polymorphism using abstract class?
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Can an interface have an inner class?
Can we use static method definitions in interfaces?
Can an interface implement or extend another interface?
What are abstract functions? Why are they used?
Can you create an instance of an abstract class?
Which oops concept exposes only necessary information to the calling functions?
Do we require a parameter for constructors?
When do you prefer to use composition than aggregation?
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Explain persistence?
Difference between encapsulation and data hiding ?
What is the use of Operator Overloading?
What is the use if instanceof keyword?