Problem of JTable's column setPreferredWidth.

Question

Hi All,
I have a problem about JTable,I want to set the preferredwidth for every column when the table is first established,but it is always failed.
Could someone tell me the root?Thanks!
import java.awt.*;
import javax.swing.*;
public class MixerTest2 extends JFrame {
public MixerTest2() {
super("Customer Editor Test");
setSize(600,160);
setDefaultCloseOperation(EXIT_ON_CLOSE);
JTable typeTable=new JTable();
typeTable=new JTable(new String [][] {
{"312fs", "33232", "32", "32"},
{"3212fsdfa12", "3322", "32", "32"},
{"3212fa12", "321212", "321212", "321212"},
{"3212gsds12", "321212", "321212", "321212"}
new String [] {
"Title 1", "Title 2", "Title 3", "Title 4"
typeTable.setAutoResizeMode(JTable.AUTO_RESIZE_NEXT_COLUMN);
typeTable.getColumnModel().getColumn(0).setPreferredWidth(10);
typeTable.getColumnModel().getColumn(1).setPreferredWidth(30);
JScrollPane typeTableScrollPane=new JScrollPane(typeTable);
getContentPane().add(typeTableScrollPane);
public static void main(String args[]) {
MixerTest2 mt = new MixerTest2();
mt.setVisible(true);
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Answer 1

Don't forget to use the Code Formatting Tags so the posted code retains its original formatting. That is done by selecting the code and then clicking on the "Code" button above the question input area.
The problem is that the size of the frame is greater than the size of the table so the widths of all the columns get adjusted after you specify the original default size.
Your code should be something like:
typeTable.setPreferredScrollableViewportSize(typeTable.getPreferredSize());
JScrollPane typeTableScrollPane=new JScrollPane(typeTable);
mt.pack();
mt.setVisible(true);Or you might be able to use my [Table Column Adjuster|http://www.camick.com/java/blog.html?name=table-column-adjuster] which will resize the columns automatically.