Class and Object: In object-oriented programming (OOP), class is a blueprint or structure of an object. In this program, the “factorial” class serves as a blueprint or structure that defines the properties and functions.

Class Definition: The “factorial” class is defined with member variables (“n” and “f”) and member functions (“in()”, “calculate()”, and “out()”). These member functions define the actions or behaviors associated with objects of the “factorial” class.

Implementation of Member Functions: (i) “in()”: Gets input from the user. (ii) “calculate()”: Computes the factorial of a given number. (iii) “out()”: Displays the result.

Objects: Objects are instances of classes. In the “main()” function, an object “x” is created for the “factorial” class. This object is used to invoke the member functions such as “in()”, “calculate()”, and “out()”.

We hope this article has helped readers learn how to write a C++ program to demonstrate function overloading, default arguments, and inline functions. This C++ practical program is  included in the I year BCA TANSCHE syllabus.

If you found this article helpful, consider sharing it with your friends. For more tutorials and content, subscribe to our YouTube channel and follow us on Twitter, Instagram, LinkedIn and  Facebook.