Definitions: A class that is derived from another class is called a subclass (also a derived class, extended class, or child class). The class from which the subclass is derived is called a superclass (also a base class or a parent class).
Read moreWhat is the difference between subclass and object?
Object is the root of a hierarchy of classes. The subclass inherits state and behavior in the form of variables and methods from its superclass . The subclass can just use the items inherited from its superclass as is, or the subclass can modify or override it.
Read more