Sorting JTable programmatically

Question

Is there a way to sort a JTable programmatically?

I have my JTable's sort working (with setRowSorter) so that when the user presses any of the columns, the table gets sorted.

I know, SWingX JXTable would probably work, but I'd rather not go through the hassle because everything else is pretty much working now and I don't know how well NetBeans' visual editor handles JXTable etc.

EDIT: The selected answer is referring to my (now removed) statement that the answer from Sun's pages didn't work for me. That was just an environment issue caused by my ignorance.

Answer 1

Works fine for me:

import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;
import javax.swing.table.*;

public class TableBasic extends JFrame
{
    public TableBasic()
    {
     String[] columnNames = {"Date", "String", "Long", "Boolean"};
     Object[][] data =
     {
      {new Date(), "A", new Long(1), Boolean.TRUE },
      {new Date(), "B", new Long(2), Boolean.FALSE},
      {new Date(), "C", new Long(9), Boolean.TRUE },
      {new Date(), "D", new Long(4), Boolean.FALSE}
     };

     final JTable table = new JTable(data, columnNames)
     {
      //  Returning the Class of each column will allow different
      //  renderers and editors to be used based on Class

      public Class getColumnClass(int column)
      {
       for (int row = 0; row < getRowCount(); row++)
       {
        Object o = getValueAt(row, column);

        if (o != null)
         return o.getClass();
       }

       return Object.class;
      }
     };
     table.setPreferredScrollableViewportSize(table.getPreferredSize());
     table.setAutoCreateRowSorter(true);
     DefaultRowSorter sorter = ((DefaultRowSorter)table.getRowSorter());
     ArrayList list = new ArrayList();
     list.add( new RowSorter.SortKey(2, SortOrder.ASCENDING) );
     sorter.setSortKeys(list);
     sorter.sort();

     JScrollPane scrollPane = new JScrollPane( table );
     getContentPane().add( scrollPane );
    }

    public static void main(String[] args)
    {
     TableBasic frame = new TableBasic();
     frame.setDefaultCloseOperation( EXIT_ON_CLOSE );
     frame.pack();
     frame.setLocationRelativeTo( null );
     frame.setVisible(true);
    }
}

Next time post your SSCCE when something doesn't work.