Need to know where to use abstract class and interface

Question

Abstract class and interfaces confuse me heavily. where have to use abstract class and where have to use interface. And also explain it with real time example also. Please anyone clear this doubt...

Upendra Pratap Shahi · Answer

Hello  Go through below link- http://www.c-sharpcorner.com/UploadFile/d0e913/abstract-class-interface-two-villains-of-every-interview/

Rajeesh Menoth · Answer

Hi Both are most important design patterns.check this links usage of abstract and interface & Examples

Munesh Sharma · Answer

http://www.c-sharpcorner.com/UploadFile/d0e913/abstract-class-interface-two-villains-of-every-interview/

Sudhesh Gnanasekaran · Answer

Abstract : If you want to implment only few methods in the concrete class may or may not ovveridable the methods then use abstract. Interface: If you want to implement all the methods designed from interface in the concrete class use interface and also it is used to write loosely coupled programs. Interface is a purely abstract class designed by implicitily. Abstract and interace it is used develop a system in a oops design guidlines apart from logic.

Karthikeyan K · Answer

Hi Read this Excellent featured article 1.http://www.c-sharpcorner.com/UploadFile/d0e913/abstract-class-interface-two-villains-of-every-interview/ i hope its clear your doubt if it is useful then kindly accept my answer Karthikeyan K

Harshad Pansuriya · Answer

You should use an abstract class if you need to supply a base implementation. Otherwise use an interface.

Upendra Pratap Shahi · Answer

Thanks a ton Vikram for appreciation.