public class T {
public static void main(String[] args)
{
JPanel p = new JPanel(new BorderLayout());
JTable table = new JTable(30, 5);
p.add(table, BorderLayout.CENTER);
p.add(table.getTableHeader(), BorderLayout.NORTH);
JFrame f = new JFrame();
f.getContentPane().add(p, BorderLayout.CENTER);
f.pack();
f.setLocationRelativeTo(null);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setVisible(true);
}
}