Looks like Android is following the trends of IOS Programming Language SWIFT.

Android New Language Kotlin is taking the features similar to SWIFT.

Kotlin is programming Language developed by team of JETBrains.

Kotlin is the statically typed language.It works on JVM.

It was first released by jetbrains in 2011 then included in Android Studio in 2016.

 

"when" has arrvied in locations where we used to use switch.