What is OOPs?

In this semester I am studying OOPs with C++.  I have already studied OOPs with C++ in my 12th standard. I wish to share whatever I understood about "What is OOPs?"

First of all, many thinks OOPs means C++. Not at all. OOPs is a concept which can also be implemented in C++. Object Oriented Programming is abbreviated as OOP. Objects are the successors of structures.

Why go for classes from structure?

Interesting concept that I understood - C++ & C

In functions, we would've heard about Call by reference concept which uses pointers. A simple program to explain "Call by Reference" would be as follows :