Java Programming

I am having trouble setting JTable column widths. The table is placed inside a JScrollPane. I am using getColumnModel().getColumn().setPreferredWidth() for each of the JTable columns but when displayed they are all the same size. If I include setAutoResizeMode(table.AUTO_RESIZE_OFF) I get the same results (only the table doesn't fill the frame). I have created a short program that exhibits this behavior. What am I missing?

package testTableData;

import java.awt.Dimension;
import java.util.ArrayList;

import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.SwingUtilities;
import javax.swing.table.AbstractTableModel;

public class TableData {

	private ArrayList<String>  col0 = new ArrayList<String>();
	private ArrayList<Integer> col1 = new ArrayList<Integer>();
	private ArrayList<Integer> col2 = new ArrayList<Integer>();
	private TableDataModel model = new TableDataModel();
	private JTable table = null;
	private JScrollPane scrollPane;
	
	TableData() {
		table = new JTable(model);
		table.setAutoResizeMode(table.AUTO_RESIZE_OFF);
		table.setPreferredSize(new Dimension(300,300));
	    table.getColumnModel().getColumn(0).setPreferredWidth(200);
	    table.getColumnModel().getColumn(1).setPreferredWidth(50);
	    table.getColumnModel().getColumn(2).setPreferredWidth(50);
		scrollPane = new JScrollPane(table);
	}

	public JScrollPane getScrollPane() { return(scrollPane); }
	
	public void add(int index, String c0, Integer c1, Integer c2) { 
		col0.add(index, c0);
		col1.add(index, c1);
		col2.add(index, c2);
		model.fireTableStructureChanged(); 
	}
	
	class TableDataModel extends AbstractTableModel {
		private String[] columnNames = { "Col0", "Col1", "Col2" };
	    public String getColumnName(int col) { return columnNames[col].toString(); }
	    public int getRowCount() { return col0.size(); }
	    public int getColumnCount() { return columnNames.length; }
	    public Object getValueAt(int row, int col) {
	        if(col == 0) 
		        return(col0.get(row));
		    else if(col == 1)
		        return(col1.get(row));
		    return(col2.get(row));
	    }
	    public boolean isCellEditable(int row, int col) { return false; }
	    public Class getColumnClass(int c) { return getValueAt(0, c).getClass(); }
	}

	public static void main(String args[])
	{
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
             	TableData td = new TableData();
         		td.add(0, "AAAAA",  0,  1);
        		td.add(1, "BBBBBBBBB", 10, 11);
        		td.add(2, "CCCCC", 20, 21);
        		
            	JFrame frame = new JFrame();
        		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        		frame.setSize(400,400);
        		frame.add(td.getScrollPane());
        		frame.setVisible(true);
            }
        });
	}
}