Refreshing new column headers problem

Question

id like to change the column headers at any time, the number of columns dont change..just the headers, so i use a myDefaultTableModel.setColumnIdentifiers(myColumnNamesArray), it kinda works in that when i print out the actual JTables column headers..they reflect the changes...i just dont see them
DefaultTableModel dm = new DefaultTableModel(dataArray, colArray);
JTable table = new JTable(dm);
...to change..
dm.setColumnIdentifiers(newColArray);
dm.fireTableChanged(new TableModelEvent(tableModel,TableModelEvent.HEADER_ROW));at this point if i do a
System.out.println(table.getColumnName(0-n));i can see that the actual table has the changed column names. what am i missing? i tried
dm.fireTableDataChanged();
dm.fireTableStructureChanged9);but that didnt do anything either :)
any help??

Answer 1

cuz just setting and repainting doesnt work for me :(Is it a programming problem or version problem?
I can't tell, which is why you should always post your test program. A test program is not that hard to create. The following works for me on JDK1.4.2:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.table.*;
public class TableHeaderChange extends JFrame
     public TableHeaderChange()
          final DefaultTableModel model = new DefaultTableModel(5, 3);
          JTable table = new JTable(model);
          JScrollPane scrollPane = new JScrollPane( table );
          getContentPane().add( scrollPane );
          JButton button = new JButton("Change Header");
          button.addActionListener( new ActionListener()
               public void actionPerformed(ActionEvent e)
                    String[] columnNames = {"One", "Two", "Three"};
                    model.setColumnIdentifiers( columnNames );
          getContentPane().add(button, BorderLayout.SOUTH);
     public static void main(String[] args)
          TableHeaderChange frame = new TableHeaderChange();
          frame.setDefaultCloseOperation( EXIT_ON_CLOSE );
          frame.pack();
          frame.setVisible(true);
}Problem solving always works better when you simplify the problem.