This is a Kotlin tutorial for Android: a fun and simple quiz that will serve as the perfect introduction to Kotlin programming.

Google offers free lessons to help up-and-coming developers build Android apps using Kotlin.

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

Find out how to customize Kotlin and Java classes so they provide exactly the functionality your project requires, including previously-closed classes.

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