private ArrayList<String> getStudentInfo(String matricNum) {
        System.out.println("MSSServlet: getStudentInfo()");
        ArrayList<String> info = new ArrayList();
        Vector student = mrsb.getStudent(matricNum);
        info.add((String) student.get(0)); // matricNum
        info.add((String) student.get(1)); // name
        info.add((String) student.get(2)); // password
        info.add((String) student.get(3)); // email
        return info;
    }