A free option for java/kotlin is always https://developer.android.com/studio which is based on (correct me if I'm wrong) https://www.eclipse.org/downloads/ right?
But c'mon, we all know vim is all you need.
But c'mon, we all know vim is all you need.
That's a funny way to spell emacs.
But who am I kidding, I don't code. I could, but then who would waste all of my time reading HN?
A free option for java/kotlin is Jetbrains IDEA Community Edition, more commonly know as "IntelliJ" to the millions of developers who view paying for software as an injustice. Android Studio is merely a re-skin of it, with lots of Android-specific extensions.