Is any compiler to compile android programming online

Answer 1

You mean android app?
You can download android studio if you want to make/compile an android app. If you want to compile java/kotlin you can do so in this app.(For learning)

Answer 2

please tell me kotlin and android language are same

Answer 3

Google announced kotlin as "their" official language for android. It doesn't mean its you can't use other language. And android isn't a language its an operating system made/slightly owned by google.