Google’s Android Studio 3.0 IDE adds support for the Kotlin language as a mechanism for building Android applications, as well as better Java 8 support and enhancements to its build system and debugging.
Where to download Android Studio 3.0
You can download Android Studio 3.0 from the Android Studio website. It is available now.
Android Studio 3.0 supports Kotlin for development
Kotlin interoperates with existing Android languages and runtimes. Developers can add Kotlin to a project using the conversion tool found in the Android Studio IDE via the menu sequence Code > Convert Java File to Kotlin File. Developers can also create a Kotlin-enabled using the New Project Wizard.