Java and MS SQL Server 2000 problem, please help

Question

please help me. I am using java and MS SQL Server 2000, and I'm trying to access and verify the login. I'm getting the following error message: [Microsoft][ODBC SQL Server Driver]Invalid Descriptor Index
Can any please help in this regard.
String userNumber = (String)userNumField.getValue();
char[] userPasswordArray = userPasswordField.getPassword();
String userPassword = new String(userPasswordArray);
     try {
            Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
            java.sql.Connection connection = java.sql.DriverManager.getConnection("jdbc:odbc:Dikolobe_Data");
            java.sql.PreparedStatement statement = connection.prepareStatement(
                    "SELECT USER_NUMBER, USER_PASSWORD, USER_CLASS, USER_STATUS " +
                    "FROM SYS_USER " +
                    "WHERE (USER_NUMBER = ? AND USER_PASSWORD = ?);");
            statement.setString(1, userNumber);
            statement.setString(2, userPassword);
            java.sql.ResultSet result = statement.executeQuery();
            if(result.next()) {
                String userStatus = result.getString(4);
                if(userStatus.equals("logged on")) {
                    String loginErrorMessage = "User with number: " + userNumber + " is already logged on.";
                    javax.swing.JOptionPane loginErrorPane = getNarrowOptionPane(72);
                    loginErrorPane.setMessage(loginErrorMessage);
                    loginErrorPane.setMessageType(javax.swing.JOptionPane.ERROR_MESSAGE);
                    javax.swing.JDialog loginErrorDialog = loginErrorPane.createDialog(null, "Login Error");
                    loginErrorDialog.setVisible(true);
                else {
                    String userClassification = result.getString(3);
                    if(userClassification.equals("Administrator")) {
                        AdminHomePage newAdminHomePage = new AdminHomePage();
                        newAdminHomePage.setVisible(true);
                    else if(userClassification.equals("Educator")) {
                        EduHomePage newEduHomePage = new EduHomePage();
                        newEduHomePage.setVisible(true);
                    statement = connection.prepareStatement(
                            "UPDATE SYS_USER SET USER_STATUS = ? " +
                            "WHERE USER_NUMBER = ?");
                    statement.setString(1, "logged on");
                    statement.setString(2, userNumber);
                    statement.executeUpdate();
                    dispose();
            }

Answer 1

Doesn't the following link give you enough information?
http://www.google.com/search?q=invalid+descriptor+index
Anyway .. This error means that the given ResultSet column index which you're trying to retrieve the value from is out of the range.