h1. Required Steps
Two are the steps you will need to take:
* install Java
* install JAS3
JAS3 requires at least Java 1.4.0, and we recommend that you install 5.0.
h1. Install Java
Download Java 5.0 (also know as J2SE for Java 2 Standard Edition) from [Sun's web site | http://java.sun.com/j2se/1.5.0/download.jsp]. All you need is the JRE, i.e. Java Runtime Environment. After acceptiong the License Agreement follow the link appropriate to your Operative System:
* *Windows Offline Installation*: After the download is complete double click on the .exe file to install Java. Accepting all the default options is normally fine.
* *Linux self-extracting file*: After the download is complete make the .bin file executable (_chmod +x fileName_) and then run it to install Java. Finally add the Java bin directory into your PATH.
h1. Install JAS3
From the [JAS3 download page | http://jas.freehep.org/jas3/download.html] download the installation file appropriate for your system.
* *Windows*: download the Microsoft installer file (.msi). Once the download is complete, just double-click on the installer file to install. After JAS3 is installed you can click on the desktop icon (shown below) to start it.
!jas3Icon.png!
* *Other*: download the appropriate .tar.gz file. Once you have downloaded it unpack it anywhere you like (_tar -xvzf fileName.tar.gz_), and then cd into the unpacked directory (_cd jas3-0.8.0_) and run it (_./jas3_).