What is needed for this workshop
leJOS NXJ only works with 32-bit version of the JDK and JRE, so even if you have a 64-bit system, you should select a 32-bit version of the JDK.
To run leJOS NXJ on Microsoft Windows you will need a suitable USB driver on your PC. You can get an installer from The LEGO Mindstorms site
Get "Eclipse Standard", or "Eclipse IDE for Java Developers". For Windows, even if you are on a 64-bit system, you need a 32-bit version of Eclipse, for leJOS NXJ. Follow the instructions to install the plugin for leJOS.