How to use TableModel ???????

Question

I'm new to java, please help me
i have this problem. When i choose the item in the combo box for the first time, i get the selected table, but when i choose the other item in combo box, the previous table is still remain in the panel instead of the new one.
String sList[] =
"InformationTechnology",
"Account",
"Investment"
combo = new JComboBox();
combo.setBounds( 220, 35, 260, 25 );
panel3.add( combo );
combo.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent ae){
System.out.println("Selected Item = "+(String)combo.getSelectedItem());
TableDisplay((String)combo.getSelectedItem());=
try {
// get column heads
ResultSetMetaData rsmd = rs.getMetaData();
for ( int i = 1; i <= rsmd.getColumnCount(); ++i )
columnHeads.addElement( rsmd.getColumnName( i ) );
// get row data
do {
rows.addElement( getNextRow( rs, rsmd ) );
} while ( rs.next() );
// display table with ResultSet contents
table = new JTable( rows, columnHeads );
scroller = new JScrollPane(table);
scroller.setBounds( 220, 70, 260, 100 );
panel3.add(scroller);
table.validate();
catch ( SQLException sqlex ) {
sqlex.printStackTrace();
just now got a 'guru' told me to use TableModel, but i search the web already but still stuck in the middle, because i don't know how to use TableModel..............

Answer 1

liml,
You code shows table instantiation as:
// display table with ResultSet contents
table = new JTable( rows, columnHeads );
Check that it's in scope, say at class-level, for subsequent manipulations.
--A