Understanding Kotlin Code Structure

Unlike Java, there’s no strong relationship between the file name and class name in Kotlin. We can put as many public classes in our file as we want, as long as the classes are related to one another and the file doesn’t grow too long to read.

Naming conventions

As a convention, if our file contains a single class, we name our file the same as our class. If our file contains more than one class, then the filename should describe the common purpose of those classes. We use Camel case when naming our files, as per the Kotlin coding convention. The main file in our Kotlin project should usually be named Main.kt.

Packages