I think he's saying he'd rather use Emacs for Java dev, but IntelliJ is a necessary evil. For Rust, there's https://github.com/racer-rust/emacs-racer https://gi

I think he's saying he'd rather use Emacs for Java dev, but IntelliJ is a necessary evil. For Rust, there's https://github.com/racer-rust/emacs-racer https://github.com/racer-rust/emacs-racer which seems pretty solid. P.S. Regarding Java dev on Emacs, ENSIME (http://ensime.github.io http://ensime.github.io) now works with java-mode rather than only Scala. I use it for Android development, and it's not perfect but works well enough.