What Does Abstract Class Mean?
In programming languages, an abstract class is a generic class (or type of object) used as a basis for creating specific objects that conform to its protocol, or the set of operations it supports.
Techopedia Explains Abstract Class
In object-oriented programming (OOP) languages, classes represent objects in the domain of the problem the software is intended to solve. Classes include collections of attributes (properties) and behaviors (methods), which can be based on previously-defined classes. Programmers use inheritance to derive the specific implementation of abstract classes. Classes that are derived from abstract classes are called derived classes. When this principle is applied many times in succession, it results in a hierarchy of classes. In this context, abstract classes are at the root of this hierarchy, and is used to enforce methods that need to be overridden in the derived classes, thus avoiding potential runtime errors.
