GUIPreferences.getInstance().setValue("Advanced" + keys.getItem(keysIndex), value.getText());
GUIPreferences.getInstance().setValue("Advanced" + keys.getModel().getElementAt(keysIndex), value.getText());
    public void focusLost(FocusEvent e) {        GUIPreferences.getInstance().setValue("Advanced" + keys.getItem(keysIndex), value.getText());    }