Abstraction in Java?

Question

Today i heard from my friend, that encapsulation is not only achieving information hiding but also abstraction. How does it achieve?

public class employee {

           


        

Answer 1

I don't think you can prove encapsulation with that particular example. It's more like this:

interface NameService {
    String getName();
}

Now, tell me: does a class implementing this interface get the name from a flat file, a database, a nosql store, or someplace else?