I'm really confusing on classes. How to use it? How to code it? Anyone, feel free to explain it. :)

Answer 1

Think of classes as a folder. (Replace the word folder woth class) and see if it makes sence.
You can have many folders or classes.

Sometimes you have folder a b c and d.

In folder a you have folders aa and ab

In in folder aa you have folder abc and zzw

Folder aa is the parents of zzw and abc

Folder a is the parents of aa

Folder a can only use the content in folder aa and not directly access folder abc and zzw cause parents can only access the data directly from a child not a grand child.

So folder aa can only access fold zzw and abd directly

In the meanwhile folder b cant acces any of the other folders except for whats in folder b and so on.

And main can access any of the disired folders that it needs to.

Answer 2

wow! that make sense. thanks :) really appreciate it.