help Sql and JTable

I try to display fields from my SQL database into a JTable,but something goes wrong.The code i have written ony displays the column names.Please help me to find the problem.

I have posted the code below.

public class ResultSetTable implements TableModel{

ResultSet results;
ResultSetMetaData metadata;
int numcols, numrows;

ResultSetTable(ResultSet results) throws SQLException {

this.results = results;
metadata = results.getMetaData();
numcols = metadata.getColumnCount();
results.last();
numrows = results.getRow();
}

public void close() {
try { results.getStatement().close(); }
catch(SQLException e) {};
}

protected void finalize() { close(); }

public int getColumnCount() { return numcols; }
public int getRowCount() { return numrows; }

public String getColumnName(int column) {
try {
return metadata.getColumnLabel(column+1);
} catch (SQLException e) { return e.toString(); }
}

public Class getColumnClass(int column) { return String.class; }

public Object getValueAt(int row, int column) {
try {
results.absolute(row+1);
Object o = results.getObject(column+1);
if (o == null) return null;
else return o.toString();
} catch (SQLException e) { return e.toString(); }
}

public boolean isCellEditable(int row, int column) { return false; }

public void setValueAt(Object value, int row, int column) {}
public void addTableModelListener(TableModelListener l) {}
public void removeTableModelListener(TableModelListener l) {}

}

__________________________________________________ ____________

public class FereastraAfisarePacienti extends JFrame {

Operatii factory;
JTextField query;
JTable table;
JLabel msgline;

public FereastraAfisarePacienti(Operatii f) {
super("Afisare pacienti");

addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) { System.exit(0); }
});

this.factory = f;

query = new JTextField();
table = new JTable();
msgline = new JLabel();

Container contentPane = getContentPane();
contentPane.add(query, BorderLayout.NORTH);
contentPane.add(new JScrollPane(table), BorderLayout.CENTER);
contentPane.add(msgline, BorderLayout.SOUTH);

query.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent e) {

displayQueryResults(query.getText());
}
});
}

public void displayQueryResults(final String q) {

msgline.setText("Realizare conexiune...");

EventQueue.invokeLater(new Runnable() {
public void run() {
try {

table.setModel(factory.afisareListaPacienti(q));
msgline.setText(" ");
}
catch (SQLException ex) {

msgline.setText(" ");
JOptionPane.showMessageDialog(FereastraAfisarePaci enti.this,
new String[] { // Display a 2-line message
ex.getClass().getName() + ": ",
ex.getMessage()
});
}
}
});

}

public static void main(String args[]) throws Exception {

Operatii factory = new Operatii();

FereastraAfisarePacienti qf = new FereastraAfisarePacienti(factory);

qf.setSize(500, 600);
qf.setVisible(true);

}
}
__________________________________________________ _______________
public class Operatii {

private Connection con;

public Operatii()
{
}

public ResultSetTable afisareListaPacienti(String nume_medic ) throws SQLException
{

con = DriverManager.getConnection("jdbc:mysql://localhost:3306/testdb","root","password");
Statement st = con.createStatement();
ResultSet result = st.executeQuery("SELECT * FROM pacienti WHERE medic = '?'");

return new ResultSetTable(result);

}

Thank you!