Emacs is one of the most popular development environments in the history of software programming, so it's no surprise that there are a number of excellent Emacs tools for Java programming. This article examines three of the best tools to alter your Emacs environment into a killer Java-language integrated development platform -- Java Mode, Hilit Java, and the showpiece, the Java Development Environment for Emacs. Describes what they do, how to use them, and how to get them.