Android Studio will walk you through adding Kotlin dependencies into your project and convert the code to functionally equivalent Kotlin code.

This is what libraries in Android Studio are for. They simply extend the capabilities of Java/Kotlin/the Android SDK by letting you use classes and methods built by other users.

Kotlin offers big advantages over Java for JVM and Android development, and plays nicely with Java in the same projects.

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.

That’s important because if you want to target Android O, create an Instant App, start developing with Kotlin, or use the latest Android app performance tools, you’ll need Android Studio 3.0.