Running Java Applications

You need to have a recent version of Java installed on your computer to run OpenSHA applications.

You can check whether you have it (or check the version number) at the following link:

http://java.com/en/download/installed.jsp

(you will be prompted to install the latest version if need be).

Please read Java Applets vs Stand-Alone Applications if you do not know the difference.

Running Stand-Alone Applications (jar files):

Just download and double click, or type the following from the command line:

java -jar [Name of the Jar file downloaded]

Windows Users: When downloading the stand-alone applications, make sure they are saved with a ".jar" extension rather than ".zip" or ".WinZip" (the latter two are apparently the default for some users). You can achieve this either by using the "save as" option in your browser, or you may be able to simply change the extension to ".jar" after downloading.

Running Applets:

Simply click the link to launch the application in your web browser.

Trouble Shooting:

If you suspect you are having memory problems (e.g., when using a large ERF), try launching the application as follows from the command line:

java -jar -Xmx500M [Name of the Jar file]

Mac OS:

• Mac OS 9 and earlier cannot run our Java applications.
• If the applications look funny (e.g., strange plots), and you're using Jaguar (Mac OS 10.2), you might need to turn of the Hardware Acceleration (click here to read about this).

Send email to java_psha@relm.org if you have any problems or questions.