String hospitalName = hospitalTF.getText();
        String userClass;

        Connection connection = null;
        Statement stmt = null;
        PreparedStatement pst = null;
        ResultSet rs = null;

        try {
            Class.forName("com.mysql.jdbc.Driver");
            connection = DriverManager
                    .getConnection("jdbc:mysql://localhost:3306/healthapp", "root", "");

            pst = connection.prepareStatement("select * from HOSPITAL where Username=? ");
            pst.setString(1, hospitalName);
            rs = pst.executeQuery();
            if (rs.next()) {
                userClass = rs.getString("Class");
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                stmt.close();
                connection.close();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }