Abstract Class Or Interface C

The implementation logic is provided by its derived classes.

Abstract class or interface c. 2 abstract class allows variable declartion and method declartion both. Definition of abstract class and interface in c an abstract class is a special type of class which may contain definition with no implementation. It can have abstract as well as non abstract methods. Hello sam the basic difference between abstract class and interface is 1 abstract class dosent provide a fully abstraction.

C abstract class explained. Whereas interface only allows method declartion. But a class can inherit only one abstract class. Whereas interface provide a fully abstraction.

An abstract class is allowed to have all access modifiers for all of its member declaration while in interface we can not declare any access modifier including public as all the members of interface are implicitly public. An abstract class is never intended to be instantiated directly. Note here i am talking about the access specifiers of the member of interface and not about the interface. An interface on the other hand is just a pattern which cannot do anything.

In c an interface is used to define the outer abilities of a class. An abstract class can have a constructor declaration. An abstract class is a special type of class that cannot be instantiated. In c an interface cannot have the constructor declaration.

An abstract class is a way to achieve the abstraction in c.