How to resize the columns of a table?

Hi there!
I want to resize the column of a JTable(constructed via AbstractTableModel) to
fit the exact width of the word in the header?
Can anyone tell me how to do this thing?
Regards,

import java.awt.*;
import javax.swing.table.*;
public class ColumnResizeDemo extends javax.swing.JFrame {
    public ColumnResizeDemo() {
        initComponents();
        TableColumn column = null;
        for (int i = 0; i < jTable1.getColumnModel().getColumnCount(); i++) {
            column = jTable1.getColumnModel().getColumn(i);
            String hv = column.getHeaderValue().toString();
            JTableHeader th = jTable1.getTableHeader();
            FontMetrics fm = th.getFontMetrics(th.getFont());
            column.setPreferredWidth(fm.stringWidth(hv)+5);
    private void initComponents() {
        jLabel1 = new javax.swing.JLabel();
        jScrollPane1 = new javax.swing.JScrollPane();
        jTable1 = new javax.swing.JTable();
        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle("Column Resize Demo");
        jLabel1.setText("Sets column width to fit exactly the corresponding header value");
        getContentPane().add(jLabel1, java.awt.BorderLayout.NORTH);
        jTable1.setModel(new javax.swing.table.DefaultTableModel(
                new Object [][] {
                    {null, null, null, null},
                    {null, null, null, null},
                    {null, null, null, null},
                    {null, null, null, null}
                new String [] {
            "Title 1", "Title 0002", "Title 0000003", "Title 00000000000004"
        jTable1.setAutoResizeMode(javax.swing.JTable.AUTO_RESIZE_OFF);
        jScrollPane1.setViewportView(jTable1);
        getContentPane().add(jScrollPane1, java.awt.BorderLayout.CENTER);
        pack();
    public static void main(String args[]) {
        new ColumnResizeDemo().setVisible(true);
    private javax.swing.JLabel jLabel1;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JTable jTable1;
}

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