@Cursorkeys You mean for keys?
The real answer is enums were only introduced in Java 5 and there are a lot of terrible developers who are content doing the same shit they first learned to do.
Enums didn't exist in Java until J2SE 5.0, so it's probably legacy code hangover
This was written in 2015 so I'm going with the developers option then. It's not a huge deal but everytime I see it my mind just goes gah.