Why do I get an error instantiating an interface?

Question

I have a class and an interface, and when I try to instantiate the interface, I get an error:

Cannot create an instance of the abstract class or inter

Answer 1

You can't instantiate interfaces or abstract classes.

That's because it wouldn't have any logic to it.

Interfaces provide a contract of the methods that should be in a class, without implementation. (So there's no actual logic in the interface).

Abstract classes provide basic logic of a class, but are not fully functional (not everything is implemented). So again, you won't be able to do anything with it.