June 2018
Intermediate to advanced
310 pages
6h 32m
English
The first thing you'll need to do when you start programming in Kotlin is create a new file. Kotlin's extension is usually .kt.
Unlike Java, there's no strong relationship between the filename and class name. You can put as many public classes in your file as you want, as long as the classes are related to one another and your file doesn't grow too long to read.
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