Abstract methods are those that are declared abstract in the base class and cannot have implementations in them, i.e., they cannot have any functionality in them.

Abstract classes are also useful when creating hierarchies of classes. Declaring a class as abstract means it can't be directly instantiated, which means an object can't be created from it. This ...

The static keyword in the C# programming language allows you to define static classes and static members. A static class is similar to a class that is both abstract and sealed.

An interface is implicitly abstract. You do not need to use the abstract keyword when declaring an interface. Each method in an interface is also implicitly abstract, so the abstract keyword is not ...