Signing you in…

Classes and Objects

Imagine a class as a blueprint and an object as the actual thing you build from it. The blueprint says what data the thing carries and what it can do — that is your fields (properties) and functions (methods). In Kotlin you describe that once with class, then create as many instances as you like.

A tiny class that feels real
Content is available with subscription.
Get full access to all courses on the platform for one year with a single payment.
Unlike other platforms that charge per course, here you get everything for one price, and after one year of use there will be no automatic charge for the following year.