result = JOptionPane.showInputDialog(this, "Trans.-zeichen (durch Kommata getrennt)", initial);
result = JOptionPane.showInputDialog(this, "Characters (seperated by commas)", initial);
    public Vector<Character> editTransChars(String initial) {        String result;                result = JOptionPane.showInputDialog(this, "Trans.-zeichen (durch Kommata getrennt)", initial);                if (result==null || result.length()==0) return null;                return parseTransChars(result);    }