Opening a fiel in custom FileDialog (VERY VERY URGENT)

Question

hi everybody,
I have a problem and stuck. I have developed a MDI application that provides all function like open saved files, create new, edit and lots of other. It only opens, save ,edit etc the graphical diagrams inside JInternalFrames. I have an icon on my desktop when clicked opens this Application. Just like Editplus, Word or some other application when you click on the icon it opens that. Same way I have created such functionality.
Now instead of this I have created a custom FileDialogfrom which the user selects this application and is opened. Now I have small icon for this FileDialog on the desktop when opened gives the interface to select the files to be opened. My FileDialog just looks like the FileDialog but some more functionality and more components like JComboBox, Jlist, JtextField, JButtons etc. in it and have removed some of them. I am extending JDialog. But now my probelm is when you select a file and click open, it should open the selected file. How can I achive this functionality in my custom FileDialog as I am not extending FileDialog and as it is built in the FileDialog. How can I open the files with any extension in it's related application e.g .doc files to be opened in MicrosoftWord, .txt to be opened in notepad, .c or .cpp in Visual Studio C++ etc.
How can I put this kind of functionality in my custom FileDialog. It's really important for me please any comments will help me alot. Thanks for the help

Answer 1

hi
for ur problem there might not be a direct solution, i believe so.
i made out an indirect way for your problem via the Java. so here it is
i've tried with Windows98 SE only, not sure of other OS's.
assume a button that has listener like the one below...
public void actionPerformed(ActionEvent ae) {
     try {
          Runtime r = Runtime.getRuntime();
          Process process = r.exec("start" + " \"" + yourSelectedFilePath + "\"");
          //want to destroy or close the app from here
          /*process.destroy();*/
     } catch(Exception e) {
          System.err.println(e);
want more detail about what is "start" command, mail me
if u want the full code to know how i acheived this, reply back
i'm not sure that this code works with every PC.
try out.
regards ma9