Why this way?

Question

Hello.
As of today, I still don't know why courses such as C++ or C# (full) explain something that could be written as a short program.
Take a look at the programs below (please write down if they can be opened). Both of these do the same thing: take 2 integers as input and outputs their sum. What is the point of writing a long program for integers sum? Is it better for stack or heap?
Looking forward to your answers.
Have a good day/afternoon/night.

https://code.sololearn.com/cBz7Tv6Iv6Z1/?ref=app
https://code.sololearn.com/cPRjl8VbGXsG/?ref=app

Answer 1

First thing is that, you're not gonna write all your code in the main block when you work on a large project.

So, you need a good technique to organise your code or the project will be a failure.

OOP is one of such techniques that can help you manage your code in such a way that a project becomes scalable. Another advantage is security. When you write the code in a class only methods can access the data.

There are many more advantages.

Answer 2

The point is learning. An exercise is not necessarily the best solution, but the one that teaches something.