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.

"Google and Udacity currently offer video-based courses for Kotlin Bootcamp and How to build Android apps in Kotlin," said Jocelyn Becker, senior program manager of Google Developer Training.

Java and Android Studio have a steep learning curve, however. Kotlin – Kotlin is another official Android language. It is similar to Java in many ways but is a little easier to get your head around.