There are many code segments in which you can use an abstract class instead of a C# interface and vice versa. If the code is small and is used to perform a simple task, you may not see the difference between these two techniques. On the contrary, when the code is big and extendable, the choice between them can play a vital role in performance and maintenance.
This chapter doesn’t focus on the basic differences between an abstract class and an interface. Instead, I’ll show some code segments ...