//
else if (s.equals(SELECT_WORKING_DIR)) {
JFileChooser fdo = new JFileChooser();
fdo.setCurrentDirectory(new File(fEnv.getWorkingDirectory()));
fdo.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
int fileGotten = fdo.showDialog(this, SELECT);
if (fileGotten == JFileChooser.APPROVE_OPTION) {
File file = fdo.getSelectedFile();
String fNa = file.toString();
workingDirField.setText(fNa);
}