features of kotlin:
1. Kotlin is open source
First and foremost, Kotlin in an open source programming language. This statically typed language was built by Jetbrains, who are also makers of IntelliJ IDE.
2. Full Java Interoperability:
One of the best features of Kotlin programming language is its deep interoperability with Java, which is bound to attract more Java developers to learn Kotlin.
3. Data Classes in Kotlin