For anyone with existing developer experience, understanding and learning Kotlin will be almost effortless.
Kotlin's syntax and design are simple to comprehend and yet very powerful to use.
This is a key reason why Kotlin has surpassed Java as being the go-to language for Android app development.
Learn Kotlin
Kotlin is easy to learn, especially if you already know Java (it is 100% compatible with Java).
Kotlin is used to develop Android apps, server side apps, and much more.
You write Android apps in Kotlin or in the Java programming language using an IDE called Android Studio.
Based on JetBrains' IntelliJ IDEA software, Android Studio is an IDE designed specifically for Android development.