Difference between Private Sub, Function and Class
Solution 1:
Private is a modifier than gives the scope of the class, sub, or function.
A sub and a function are both subroutines, or sections of code that can be called in the program. The difference between them is that a function has a return value and a sub does not.
A class is a group of codes that can include subs, functions, and other stuff.
Solution 2:
Sub is like a function but it doesnt returns any values it just executes a proccess