What is single and multiple inheritance?
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Is @functionalinterface annotation mandatory to define a functional interface? What is the use of @functionalinterface annotation? Why do we need functional interfaces in java?
What is Overloading ? Is it similar to overriding ?
What do you mean by "explicitly implemeting an interface". Give an example?
What is Polymorphism, overloading, overriding and virtual?
What is a functional interface? What is sam interface?
What is the use of finalize method?
Differentiate between a class and a method.
Who is an Actor?
What is the difference between multiple and multilevel inheritance?
What is the practical implementation of inner classes?
Can an interface inherit from another interface?
What are the various types of constructors?