Get started with Kotlin
It’s easy to get started with Kotlin using the Kotlin plugin integrated in IntelliJ IDEA. Benefit from code highlighting, code completion, refactoring, debugging, and other features available for Kotlin.
Start a new Kotlin project
If you want to start from scratch, you can create a basic Kotlin application. Once you’ve created the application, you can dive deeper into Kotlin syntax:
Update an existing Java project
If you already have a Java project, you can:
Write some tests in Kotlin for your code.
Tests are a safe place to add Kotlin to the codebase because they are not bundled with your application during packaging.
Convert Java code to Kotlin.
Extract small pieces of Java functionality and convert to Kotlin classes and functions using the Java-to-Kotlin converter.