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

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.

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

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.

Since Kotlin is dependent on Java, it means both languages will continue to be supported. Google will now contribute to the further growth of Kotlin and build new tools directly into Android ...