Kotlin in Action

Kotlin — a simple and high-performance programming language, flexible enough to work with any web, mobile, cloud, and enterprise applications. Java application developers will appreciate the simple syntax, intuitive type system, a set of excellent tools, and support for functional... programming. Additionally, since Kotlin runs on the JVM, it easily integrates with existing Java code, libraries, and frameworks, including Spring and Android.
The second edition of the bestseller «Kotlin in Action» includes descriptions of coroutines, structured concurrency, and other new features of the language. This authoritative guide, written by key members of the Kotlin language development team, presents useful ways to use the Kotlin standard library, functional programming, and advanced capabilities such as generics and reflection. In short, this is the most comprehensive and accurate book on Kotlin available.