Also called an "abstract superclass," in object technology, it is a class created as a master structure. No objects of an abstract class are created, rather subclasses of the abstract class are ...

The C# programming language provides support for both virtual and abstract methods, each of which has distinct advantages. You use virtual methods to implement late ...

Overview Python's "abstract base class" system gives you a way to create types that serve as the abstract foundation for another, more concrete type. This example shows how an abstract base class from ...

Apparently, it's not possible to create a collection with an abstract type in STL. How do I go around the problem of creating a collection with a base abstract type and using that collection with a ...