Android development starts with the Android SDK - a collection of tools needed to build any kind of Android app. Discover what's included and how to use it.

If you want to learn the Kotlin programming language, check out this list of books, courses, tutorials, videos and websites.

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

It’s no surprise that Google’s hope is that over time, all Android developers will switch over to Kotlin. “There is still quite a bit of Java still happening on Android,” Ward said.

Kotlin is a super new programming language built by JetBrains, which also coincidentally develops the JetBrains IDE that Android Studio — Google’s official developer tool — is based on.