Why is Kotlin gaining popularity?

Other newish languages, such as Kotlin and Rust, have also risen in the rankings, although not as dramatically . For developers who hate working with older, well-established languages such as Java and JavaScript, many of these newer languages can act as an effective substitute.

Kotlin has 100% interoperability with Java . Developers can naturally use the existing Java code. And Kotlin code, too, can be used in Java. The interoperability, combined with other developer-friendly features, made Kotlin popular among developers as what they call ‘better Java’.

So, why not KOTLIN is not in top 3 programming language by rank? Kotlin does have a chance of getting closer to Java usage one day, because it can use the JVM, compile code natively without the JVM, and is pushed by Google .