Question

what is an abstract class​

Answer 1

Hello!!❤

✨In programming languages, an abstract type is a type in a nominative type system that cannot be instantiated directly; a type that is not abstract – which can be instantiated – is called a concrete type. Every instance of an abstract type is an instance of some concrete subtype.✨

✨❤HOPE it helps to you!!❤✨

Answer 2

provide the implementation of abstract class. 5) The abstract keyword is used to declare abstract class. The interface keyword is used to declare interface. 6) An abstract class can extend another Java class and implement multiple Java interfaces. An interface can extend another Java interface only.........