JJEdit simplifies compiling, running Java on OS X. By Dennis Sellers. APR 11, 2002 5:00 pm PDT.

"Compiler #2" as it has been affectionately called is a compiler to turn normal Ruby classes into Java classes, so they can be constructed and called by normal Java code. When I asked for 1.3 ...

Now, open the Command Prompt and run it as administrator. We will make use of the ‘cd’ command to change the operating directory on the Command Prompt to the one where your Java program is stored.