JFileChooser.showSaveDialog(…) - how to set suggested file name

Question

The JFileChooser seems to be missing afeature: a way to suggest the file name when saving a file (the thing that usually gets selected so that it would get repl

Answer 1

setSelectedFile doesn't work with directories as mentioned above, a solution is

    try {
        FileChooserUI fcUi = fileChooser.getUI();
        fcUi.setSelectedFile(defaultDir);
        Class fcClass = fcUi.getClass();
        Method setFileName = fcClass.getMethod("setFileName", String.class);
        setFileName.invoke(fcUi, defaultDir.getName());
    } catch (Exception e) {
        e.printStackTrace();
    }

Unfortunately the setFileName is not included in the UI interface, thus the need to call it dynamically. Only tested on mac.