SummaryKotlin in Action guides experienced Java developers from the language basics of Kotlin all the way through building applications to run on the JVM and Android devices. Foreword by Andrey Breslav, Lead Designer of Kotlin.Purchase of the print book includes a free eBook in PDF, Kindle, and ePub formats from Manning Publications.About the TechnologyDevelopers want to get work done - and the less hassle, the better. Coding with Kotlin means less hassle. The Kotlin programming language offers an expressive syntax, a strong intuitive type system, and great tooling support along with seamless interoperability with existing Java code, libraries, and frameworks. Kotlin can be compiled to Java bytecode, so you can use it everywhere Java is used, including Android. And with an effi cient compiler and a small standard library, Kotlin imposes virtually no runtime overhead.About the BookKotlin in Action teaches you to use the Kotlin language for production-quality applications. Written for experienced Java developers, this example-rich book goes further than most language books, covering interesting topics like building DSLs with natural language syntax. The authors are core Kotlin developers, so you can trust that even the gnarly details are dead accurate.What's InsideFunctional programming on the JVMWriting clean and idiomatic codeCombining Kotlin and JavaDomain-specific languagesAbout the ReaderThis book is for experienced Java developers.About the AuthorDmitry Jemerov and Svetlana Isakova are core Kotlin developers at JetBrains.Table of ContentsPART 1 - INTRODUCING KOTLINKotlin: what and whyKotlin basicsDefining and calling functionsClasses, objects, and interfacesProgramming with lambdasThe Kotlin type systemPART 2 - EMBRACING KOTLINOperator overloading and other conventionsHigher-order functions: lambdas as parameters and return valuesGenericsAnnotations and reflectionDSL construction