A modern programming language that makes developers happier.

kotlinlang

<https://gist.github.com/ma-za-kpe/e49a0002a1c5ee9106710670685c901c|https://gist.github.com/ma-za-kpe/e49a0002a1c5ee9106710670685c901c>

I don’t think it’s legal to have a package called `interface`

And if it is, something’s wrong with it. You might work around it by putting `interface` in backticks

It seems you're trying to paste Kotlin code into java file

You should use New -&gt; "Kotlin File/Class" in Android Studio instead