How to set default file extension in the FileChooser?

Question

We are trying to use the FileChooser but for some reason, it doesn't have any file extensions in the drop down menu (like in windows). Does anyone know how to put this in?
Also, how do we set the file name for the saving file, rather than typing the name in ourself?
Also, how do we position the file chooser dialog in the middle of the screen? Right now, it's in the top left corner of the screen.
Here's our piece of code, used for saving file.
FileChooser fileChooser = new FileChooser();
        File file = fileChooser.showSaveDialog(stage);
        /*User might clicked on the cancel button*/
        if (file != null) {
            try {
                Writer output = new BufferedWriter(new FileWriter(file));
                output.write(text);
                output.close();
            } catch (IOException ex) {
                logger.error("save file error", ex);
        }Any help would be appreciated! Thanks!

Answer 1

867511 wrote:
We are trying to use the FileChooser but for some reason, it doesn't have any file extensions in the drop down menu (like in windows). Does anyone know how to put this in?Have you read the API? What's the nested class of FileChooser that's listed immediately after it in the classes list?
Also, how do we set the file name for the saving file, rather than typing the name in ourself?I don't see any API for that. You could file a RFE on kenai.
Also, how do we position the file chooser dialog in the middle of the screen? Right now, it's in the top left corner of the screen.I don't see any API for that either.
db