And despite all of the focus on Kotlin, it’s worth noting that the core of the Android platform and its APIs are still built on Java.

Google I/O: Kotlin, a popular new language for mobile platforms that's compatible with Java, is now officially supported on Android.

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

Here's what Meta's developers have learned from moving their code base from the Java programming language over to Kotlin.

Google today announced that the third Android O Developer Preview is available, bringing final APIs to the platform. Developers can also now submit their apps to the Google Play Store.