C++ objects and the dot operator

Question

classname object.datavariable=2323 (or any other value)

This would mean access the datavariable of the object and initialize the datavariable of object a value of 2323. I get this.

Its similar to like
int a=4?

But with

object.function()

I am trying to understand how a program would interpret this. Access the object's data variables and do something to them via function()?

If I wanted to use a member function inside main, I HAVE to use it with an object right?

Answer 1

Exactly that 👍 your code in main will look somthing like.

//Using constructor will initalize your object.

YourClass object = new YourClass(5,5);
object.function();