Changing the column name in JTable

[Sowjanya Chowdary]

I am creating a table using swings JTable with some columns.
i need to change the column names when i click on a particular button.
How can i achieve my target?
Thanks in advance for any help.
[ October 17, 2005: Message edited by: Amrutha Ch ]

[Ilja Preuss]

Moving to Swing/AWT...

[Michael Dunn]

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.table.*;
 
class Testing extends JFrame
{
  JToggleButton btn = new JToggleButton("Col 1 First Name/Name");
  public Testing()
  {
    setLocation(400,100);
    setDefaultCloseOperation(EXIT_ON_CLOSE);
    String colNames[] = {"Name", "Age"};
    Object[][] data = {{"joe","21"},{"fred","31"},{"mary","22"}};
    DefaultTableModel dtm = new DefaultTableModel(data,colNames);
    final JTable table = new JTable(dtm);
    JScrollPane sp = new JScrollPane(table);
    sp.setPreferredSize(new Dimension(300,100));
    getContentPane().add(sp,BorderLayout.CENTER);
    getContentPane().add(btn,BorderLayout.SOUTH);
    pack();
    btn.addActionListener(new ActionListener(){
      public void actionPerformed(ActionEvent ae){
        table.getTableHeader().getColumnModel().getColumn(0).setHeaderValue(btn.isSelected()? "First Name":"Name");
        repaint();}});
  }
  public static void main (String[] args){new Testing().setVisible(true);}
}

[Brian Cole]

Originally posted by Michael Dunn:

table.getTableHeader().getColumnModel().getColumn(0).setHeaderValue("...");
repaint();

Be careful if you allow the user to re-order the columns,
as getColumnModel().getColumn(0) will return the first
column as displayed, not necessarily column zero of your
table model.

[Sowjanya Chowdary]

Michael & Brian,
Thanks for a simple and self-explanatory example.