We will be using Eclipse and Processing. Both require Java to be installed. 

 1. Go to http://www.java.com/en/download/manual.jsp;
 1. Download the latest version for your system;
 1. Install the downloaded package. Following the step-by-step on-screen instructions. Please let Java to be installed at its default location.
 1. Test your Java installation with your web browser: http://www.java.com/en/download/help/testvm.xml. You should see something like the following in the loaded webpage:
 
{{attachment:JavaInstalled.jpg}}