DrJava, the Java editor many university courses use, packaged for today's Macs. Java 8 is built in, compiling works, and text is sharp on Retina screens. Download it, drag it to Applications, allow it ...

Welcome to UPenn's DrJava primer. This guide is intended to get you used to the basics of using the DrJava IDE (Integrated Development Environment). First, make sure you have properly installed DrJava ...