To start with - Yes, I know that this is crazy/strange. But I need it :).
I want to find simpliest way to run single java file (and prefer non-terminal answers :) - if they are possible ) in Android Studio. I mean random .java file from my Android project in which I'll write main(..) method. And there's one more thing: I don't want to create any new modules (I've already seen answers about adding Java library module). I just want to click something and run my (single) file, the same way as I can do it in Eclipse. Is it possible?
If nothing else, you can make a quick JUnit test that calls your class's main method.