My JTable wont update can someone plz help

Question

My JTable is supposed to change betwen method visRes() and visV�relser() but when one of them is picked from another file the JTable wont change to the other method...can someone help?
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.sql.*;
import javax.swing.table.*;
public class Opslag extends JFrame
Reservation hentRes;
V�relse hentV�relse;
Object[][]data;
String[]panelTekst;
JTable table;
JScrollPane scrollPane;
public Opslag(Reservation r,V�relse v)
          hentRes = r;
          hentV�relse = v;
public void visRes()
     data = new Object[hentRes.t�ller()][8];
panelTekst = new String[8];
          panelTekst[0] = "Res Nr";
          panelTekst[1] = "G�steNr";
          panelTekst[2] = "V�relsesNr";
          panelTekst[3] = "Udl Start";
          panelTekst[4] = "Udl Slut";
          panelTekst[5] = "Check Ind";
          panelTekst[6] = "Check Ud";
          panelTekst[7] = "Res Dato";
table = new JTable(data, panelTekst);
scrollPane = new JScrollPane(table);
getContentPane().add(scrollPane, BorderLayout.CENTER);
table.setEnabled(false);
//table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
try {
ConnectDB db = new ConnectDB( "jdbc:interbase://localhost/C:/Documents and Settings/aslan/Skrivebord/modelKomponent/HOTEL.GDB", "sysdba", "masterkey" );
ResultSet row = db.select( "SELECT * FROM RESERVATION" );
          for(int i=0;row.next();i++)
          int ii = 0;
          data[i][ii] = row.getString("RESNR");
          ii++;
          data[i][ii] = row.getString("GAESTENR");
          ii++;
          data[i][ii] = row.getString("VAERNR");
          ii++;
          data[i][ii] = row.getString("DATOUDLSTART");
          ii++;
          data[i][ii] = row.getString("DATOUDLSLUT");
          ii++;
          data[i][ii] = row.getString("DATOCHECKIND");
          ii++;
          data[i][ii] = row.getString("DATOCHECKUD");
          ii++;
          data[i][ii] = row.getString("DATORES");
          ii++;
} catch (SQLException e)
catch(NullPointerException a)
public void visV�relser()
          data = new Object[hentV�relse.t�ller()][11];
panelTekst = new String[11];
          panelTekst[0] = "V�relse Nr";
          panelTekst[1] = "Type";
          panelTekst[2] = "Res Nr";
          panelTekst[3] = "Status";
          panelTekst[4] = "Havudsigt";
          panelTekst[5] = "Sal";
          panelTekst[6] = "Gang Nr";
          panelTekst[7] = "Pris";
          panelTekst[8] = "St�rrelse";
          panelTekst[9] = "Stil";
          panelTekst[10] = "Antal bad";
table = new JTable(data, panelTekst);
scrollPane = new JScrollPane(table);
getContentPane().add(scrollPane, BorderLayout.CENTER);
table.setEnabled(false);
//table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
try {
ConnectDB db = new ConnectDB( "jdbc:interbase://localhost/C:/Documents and Settings/aslan/Skrivebord/modelKomponent/HOTEL.GDB", "sysdba", "masterkey" );
ResultSet row = db.select( "SELECT * FROM VAERELSE" );
          for(int i=0;row.next();i++)
          int ii = 0;
          data[i][ii] = row.getString("VAERELSENR");
          ii++;
          data[i][ii] = row.getString("TYPEN");
          ii++;
          data[i][ii] = row.getString("RESNR");
          ii++;
          data[i][ii] = row.getString("VAERELSESTATUS");
          ii++;
          data[i][ii] = row.getString("HAVUDSIGT");
          ii++;
          data[i][ii] = row.getString("SAL");
          ii++;
          data[i][ii] = row.getString("STEDGANG");
          ii++;
          data[i][ii] = row.getString("PRIS");
          ii++;
          data[i][ii] = row.getString("STORRELSE");
          ii++;
          data[i][ii] = row.getString("STIL");
          ii++;
          data[i][ii] = row.getString("ANTALBAD");
          ii++;
} catch (SQLException e)
catch(NullPointerException a)
}

Answer 1

        public void visG�ster()
         data = new Object[hentG�st.t�ller()][11];
        panelTekst = new String[11];
          panelTekst[0] = "G�steNr";
          panelTekst[1] = "Type";
          panelTekst[2] = "Navn";
          panelTekst[3] = "Efternavn";
          panelTekst[4] = "Adresse";
          panelTekst[5] = "Tlf";
          panelTekst[6] = "Antal Res";
          panelTekst[7] = "Idnr";
          panelTekst[8] = "Firma";
          panelTekst[9] = "CVR";
          panelTekst[10] = "Rabat";
        table = new JTable(data, panelTekst);
        if (scrollPane != null)
            getContentPane().remove(scrollPane);
        scrollPane = new JScrollPane(table);
        scrollPane.revalidate();
        getContentPane().add(scrollPane, BorderLayout.CENTER);
        table.setEnabled(false);
        this.pack();
        table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
        table.getColumnModel().getColumn(0).setPreferredWidth(60);
        table.getColumnModel().getColumn(1).setPreferredWidth(60);
        table.getColumnModel().getColumn(2).setPreferredWidth(60);
        table.getColumnModel().getColumn(3).setPreferredWidth(60);
        table.getColumnModel().getColumn(4).setPreferredWidth(150);
        table.getColumnModel().getColumn(5).setPreferredWidth(80);
        table.getColumnModel().getColumn(6).setPreferredWidth(60);
        table.getColumnModel().getColumn(7).setPreferredWidth(60);
        table.getColumnModel().getColumn(8).setPreferredWidth(100);
        table.getColumnModel().getColumn(9).setPreferredWidth(100);
        table.getColumnModel().getColumn(10).setPreferredWidth(60);
        try {
        ConnectDB db = new ConnectDB( "jdbc:interbase://localhost/C:/Documents and Settings/aslan/Skrivebord/modelKomponent/HOTEL.GDB", "sysdba", "masterkey" );
        ResultSet row = db.select( "SELECT * FROM GAEST" );
        int type = 0;
                  for(int i=0;row.next();i++)
                      int ii = 0;
                      data[i][ii] = row.getString("GAESTENR");
                      ii++;
                      data[i][ii] = row.getString("TYPEN");
                      ii++;
                      data[i][ii] = row.getString("NAVN");
                      ii++;
                      data[i][ii] = row.getString("EFTERNAVN");
                      ii++;
                      data[i][ii] = row.getString("ADRESSE");
                      ii++;
                      data[i][ii] = row.getString("TLF");
                      ii++;
                      data[i][ii] = row.getString("ANTALRESERVATION");
                      ii++;
                      type = row.getInt("TYPEN");
                if(type == 1)
                         ResultSet row2 = db.select(" SELECT * FROM PRIVATGAEST ");
                         while(row2.next())
                              data[i][ii] = row2.getString("IDNR");
                              ii++;
                    else if(type == 0)
                         ResultSet row3 = db.select(" SELECT * FROM ERHVERVSGAEST ");
                         while(row3.next())
                              data[i][ii] = row3.getString("FIRMA");
                              ii++;
                              data[i][ii] = row3.getString("CVR");
                              ii++;
                              data[i][ii] = row3.getString("RABAT");
                              ii++;
            } catch (SQLException e)
                 System.out.println(e);
            catch(NullPointerException a)
                  System.out.println(a);
        }