Google's Android Studio 3.0 dev environment has just become available in the stable channel, with built-in support for Kotlin and Java 8.

Find out what to look for in the latest version of Android Studio, including support for Kotlin, Java 8, and a wealth of new tools and plugins. If you’re new to Android Studio, this tutorial ...

Kotlin interoperates with Java and its libraries, and is included with JetBrains' IntelliJ IDEA integrated development environment and Android Studio.