What is constructor? Explain how it is overloaded, with the help of a C++ program.

Constructor – Inheritance is a mechanism by virtue of which the classes inherit the attributes and methods of some other class(s).

In a sense, we can say, inheritance is a way to reuse the code of some existing or already defined classes.

The classes, in this case, are said to have ‘a-kind-of’ and ‘is-a’ relationship with the other classes.

Using this property of OOP, one class can extend other classes by including additional methods and/or attributes (variable).

The original class is called the ‘superclass’ of the extending class and the extended class is called the ‘subclass’ of the class that is being extended.