Kotlin Help

Learning materials overview

You can use the following materials and resources for learning Kotlin:

  • Basic syntax – get a quick overview of the Kotlin syntax.

  • Idioms – learn how to write idiomatic Kotlin code for popular cases.

  • Kotlin Koans – complete exercises to learn the Kotlin syntax. Each exercise is created as a failing unit test and your job is to make it pass. Recommended for developers with Java experience.

  • Kotlin by example – review a set of small and simple annotated examples for the Kotlin syntax.

  • Kotlin Core track by JetBrains Academy – learn all the Kotlin essentials while creating working applications step by step.

  • Kotlin books – find books we've reviewed and recommend for learning Kotlin.

  • Kotlin tips – watch short videos where the Kotlin team shows you how to use Kotlin in a more efficient and idiomatic way, so you can have more fun when writing code.

  • Advent of Code puzzles – learn idiomatic Kotlin and test your language skills by completing short and fun tasks.

  • Kotlin hands-on tutorials – complete long-form tutorials to fully grasp a technology. These tutorials guide you through a self-contained project related to a specific topic.

  • Kotlin for Java Developers – learn the similarities and differences between Java and Kotlin in this course on Coursera.

  • Kotlin documentation in PDF format – read our documentation offline.

Last modified: 25 August 2023