4 replies to this topic

[rolls]

I know you can compile java programs into a single .jar file that you can execute but I have a problem and I want to know if it can be solved.

Now I have a custom file format that has the extension .dta the files contain some data to create a graph. Now I want to be able to double click these files and have them open in my java program. Also if the program is already open I want any further files that are opened (not via the file > open functionality) to open in this same instance of the application.

How can I do this and what would be the best way. Should I use a separate launcher application written in say C# that calls the java -jar application.jar filename? Or is there an easier way to do this.

Thanks in advance. :)

[Orjan]

a .bat file should do as well I guess, on windows, then just register the extension in windows registry as usual.

[rolls]

A batch file looks so ugly and unprofessional though. Also how would it allow further files to be opened in the same window?

[WingedPanther]

jEdit is an example of registering the entire command as the "associated executable". You associate "java -jar [myfile].jar %1" and have your jar able to read the command-line parameters.

[rolls]

Hmm I guess I could do it that way, I don't like how the black command window pops up though, if I could stop that from happening I would accept that as a solution. Also how could I get new files to open in the existing java window and not load a separate instance of it?