Object Oriented Programming Inheritance

Class Extensions, sometimes known as partial classes, have long existed in Smalltalk. Microsoft introduced partial classes with the release of the.NET framework 2, and both C# 2.0 and Visual Basic 2005 supported them.

Some programming languages offer special support for mixins. Mixins are commonly used to offer the same methods to many classes.

Comparatively speaking, abstract classes imply, promote, and necessitate derivation in order to be used at all. Implicitly, a non-subclassable class is concrete.

Each class in some programming languages, like Python, Ruby, or Smalltalk, is an instance of a particular metaclass that is included in the language.

An abstract class, also known as an abstract base class (ABC), is a class that cannot be instantiated in a language that enables inheritance because it either bears the label "abstract" or only lists abstract methods (or virtual methods).

Developer tools can use this data to build additional code for the objects in addition to the basic data definitions, such as error checking on the get and set methods.

A superclass is conceptually a superset of all of its subclasses. For instance, in a typical class hierarchy, Square would be a subclass of Rectangle, whereas GraphicObject would be the superclass of Ellipse and Rectangle.

Java, for instance, permits a class to implement several interfaces, but it can only derive from a single class.

Classes can be created by deriving from one or more preexisting classes, creating a hierarchy between the base classes, parent classes, or superclasses and the derived class (also known as a child class or subclass).

The operations of any interface of a class must be independent of one another, according to the object-oriented programming paradigm.