private static void loadStudentsFromMySQL(final Connection conn) throws SQLException{
		final Statement s = conn.createStatement();
		s.executeQuery("SELECT id, name FROM obj_student");
		final ResultSet rs = s.getResultSet();
		int count = 0;
		while (rs.next()) {
			final String studentId = rs.getString("id");
			final String name = rs.getString("name");
			final Student stu = new Student(studentId, name);
			students.put(stu.getId(), stu);
			count++;
		}
		rs.close();
		s.close();
	}