Interface And Abstract Class Difference C

An interface is better than an abstract class when multiple classes need to implement the interface. Difference between abstract class and interface. An abstract class can contain methods with or with a definition.
difference between interface and abstract class c# interface and abstract class difference in c#

An abstract class can have abstract as well as non abstract members.

Interface and abstract class difference c. It can have abstract as well as non abstract methods. Definition of abstract class and interface in c an abstract class is a special type of class which may contain definition with no implementation. An abstract class can have constructorsthis is one major difference between an abstract class and an interface. An interface on the other hand is just a pattern which cannot do anything.

A class can use multiple interface. In contrast to abstraction both abstract class and interface are coming out in picture as both of these provides abstraction in c program. It is used to implement peripheral abilities of class. 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.

The interface allows us to define the functionality or functions but cannot implement that. Note here i am talking about the access specifiers of the member of interface and not about the interface. The performance of interface is slow because it requires time to search actual method in the corresponding class. In an abstract class we can create the functionality and that needs to be implemented by the derived class.

A class may inherit several interfaces but only one abstract class. It is used to implement the core identity of class. In c an abstract class vs interface c has been used for data abstraction. You can take advantage of abstract classes to design components and specify some.

A class can only use one abstract class. But in an interface all the members are implicitly abstract and must be overridden in the derived class. The only complete member of an abstract class can be static. The implementation logic is provided by its derived classes.

The member of the interface cannot be static. The performance of an abstract class is fast.