Standard OOPS concepts like diff between interface and abstract class.

Question

SCH · Accepted Answer

An abstract class is a class that can't be instantiated directly and must be inherited to create a concrete class.
An interface is an abstract class which provides no default implementation and just specifies the functionality a concrete class much implement.

Gee · Answer

I believe the best answer would be to say Interface does not have any default definition for a function whereas abstract class can.. So when we need to define some sort of default implementation, abstract class are better than interfaces.

What SCH is correct too

Teddy · Answer

An interface is a group of related methods with empty bodies.
An abstract class is a class that is declared abstract.

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