What classes must be inherited?

An inherited class is called a subclass of its parent class or super class .

Parent Class : The class whose properties and functionalities are used(inherited) by another class is known as parent class, super class or Base class.

Inheritance is the procedure in which one class inherits the attributes and methods of another class . The class whose properties and methods are inherited is known as the Parent class. And the class that inherits the properties from the parent class is the Child class.