Android Programming with Kotlin for Beginners

Summary

We have, at last, written our first class. We have seen that we can implement a class in a file of the same name as the class. The class itself doesn't do anything until we instantiate an object/instance of the class. Once we have an instance of the class, we can use its special variables, called properties, and its non-private functions. As we proved in the Basic Classes app, every instance of a class has its own distinct properties, just as when you buy a car made in a factory, you get your very own steering wheel, satnav, and go-faster stripes. We have also bumped into the concept of references, which means that, when we pass an instance of a class to a function, the receiving function has access to the actual instance.

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