Opening a file in a Java application

Hi everybody,
I've written a simple text editor, and this editor saves files with a particular extension. It can both open and save files. I've put the text editor program in a JAR. What I'd like to do, if possible, is associate the file extension with the text editor program. That is, I'd like to, when I click on a file with the extension, have the text editor come up with the file opened in it.
Can anyone give me ideas on how to do this, please? I'm not sure if it's a programming issue, operating system issue, Swing issue, or some combination of all three, honestly. If it will help, I'm using Windows XP.
Thanks,
Jezzica85

>
I've written a simple text editor, and this editor saves files with a particular extension. It can both open and save files. I've put the text editor program in a JAR. What I'd like to do, if possible, is associate the file extension with the text editor program. That is, I'd like to, when I click on a file with the extension, have the text editor come up with the file opened in it.
Can anyone give me ideas on how to do this, please? >If the editor is launched using webstart, the launch file can suggest a file association.
Note that an application that accesses the local file system needs to be digitally signed before it can break out of the applet like 'sandbox' in which it runs, unless it uses the JNLP API to access the files. The JNLP API is available to any app. launched using webstart.
There is an example of both claiming a file extension, and accessing files using the JNLP API, in this [File Service Demo|http://pscode.org/jws/api.html#fs]. The complete source and a build file can be downloaded from the filetest.zip just near the launch buttons.
I suggest you try the sandboxed version first - if you think that will suit your user, go with that.
As an aside, for best chance of a solution, I recommend folks add [Duke stars|http://wikis.sun.com/display/SunForums/Duke+Stars+Program+Overview] to match the importance of the task.

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