All skills
Technical skill
Kotlin
A modern JVM language and the default for Android.
Why it matters
Android teams and many backend JVM teams have moved to Kotlin.
How to learn it
- 1Learn the syntax, types and control flow of Kotlin.
- 2Write 20 small programs that each do one thing well.
- 3Read an open-source project written in Kotlin.
- 4Ship one real tool or app using Kotlin.