protected NewFolderAction() 
{
            super(FilePane.ACTION_NEW_FOLDER);
}

 public  void actionPerformed(ActionEvent e) 
{
            if (readOnly) {
                return;
            }
            JFileChooser fc = getFileChooser();
            File currentDirectory = fc.getCurrentDirectory();
            if (!currentDirectory.exists()) {
                JOptionPane.showMessageDialog(
                    fc,
                    newFolderParentDoesntExistText,
                    newFolderParentDoesntExistTitleText, JOptionPane.WARNING_MESSAGE);
                return;
            }
            File newFolder;
            try {
                newFolder = fc.getFileSystemView().createNewFolder(currentDirectory);
                if (fc.isMultiSelectionEnabled()) {
                    fc.setSelectedFiles(new File[] { newFolder });
                } else {
                    fc.setSelectedFile(newFolder);
                }
            } catch (IOException exc) {
                JOptionPane.showMessageDialog(
                    fc,
                    newFolderErrorText + newFolderErrorSeparator + exc,
                    newFolderErrorText, JOptionPane.ERROR_MESSAGE);
                return;
            }
            fc.rescanCurrentDirectory();
}