Features of kotlin?

Question

Why we should use kotlin, and why not another one?
Any features that make kotlin prefer

Answer 1

Some Features Defined
https://www.sololearn.com/learn/7792/?ref=app

Answer 2

https://www.sololearn.com/discuss/1319472/?ref=app

Answer 3

Thank you

Answer 4

Personally, I love Kotlin. I can use a single variable for any type data, have extremely tight type & null safety, nest functions or classes, and extend pre-existing classes to add new functionality.