How can I run Java .jar files on my EPOC device?

How do I set up my EPOC device for developing Java programs?

How can I run Java .jar files on my EPOC device?

The holy grail! Or that's how it began to seem to me after I asked this innocuous little question (Note that this is entirely different from running Java applets on web pages in a web browser).

The guide at FoxPop is the best "Java on EPOC for dummies" guide I've seen. For a proper explanation of the steps required to get a full Java development environment set up on EPOC, check out this excellent one by Frank Bodmann. There's another person's take here.

If however all you want to do is run a jar file, then all you need do is:

• Install the Java Virtual Machine for your device. Its either on the PsiWin CD, or here (a 2.9MB .SIS file) if you haven't got the CD.
• If you just want to be able to type 'java NameOfMyClass.jar', then download ESHELL and bung it anywhere on your Psion. Double-click it to get command line access to EPOC, and therefore to the Java executables.
• If you would like to package the .jar as a .SIS file (get an icon on your Extras Bar, Add/Remove etc.), you will need to get hold of the Java SDK for your device. To do this, read my page on setting up the EPOC emulator, which includes instructions for obtaining and installing the SDK. The bundled help will guide you in doing the rest.

How do I set up my EPOC device for developing Java programs?

Follow this guide at FoxPop. JE5 is a syntax-highlighting source code editor, written in Java!

Page last updated: February 16, 2003