Strange Problem about KeyListener, and FocusListener

Question

Hi,Please help me with this problem.
I create a JTable and setCellEditor by using my customerized TextField
The problem is: when I edit JTable Cell, the value can not be changed and I can not get Key Event and Focus Event.
here is my source:
//create normal JTable instance,and then initlize it
private void initTable(Vector folders)
TableColumn tempcol = getColumnModel().getColumn(0);
tempcol.setCellEditor(new DefaultCellEditor(new MyTextField()));
for(int i=0;i<folders.size();i++)
mddDataSource ds=(mddDataSource) folders.get(i);
String name = ds.getDataSourceName();
layers.add(name);
for(int i=0;i<layers.size();i++){
Vector temp = new Vector();
temp.add(layers.get(i));
temp.add(layers.get(i));
dtm.addRow(temp);
// My Text Field cell
class MyTextField extends JTextField implements FocusListener, KeyListener
MyTextField()
setOpaque (false);
addKeyListener(this);
addFocusListener(this);
MyTextField(String text)
setOpaque (false);
addKeyListener(this);
addFocusListener(this);
public void focusGained(FocusEvent e) {
System.out.println("get Focus");
public void focusLost(FocusEvent e) {
instance.setValue(getText());
public void keyTyped(KeyEvent e){
instance.setValue(getText());
public void keyPressed(KeyEvent e){
System.out.println("get Key ");
public void keyReleased(KeyEvent e){
instance.setValue(getText());
If there are some good sample, please tell me the link or give me some suggestion.
Thanks in advanced

Answer 1

Thanks for your help.
The problem still exist. It does not commit the value that I input.
Maybe I should say it clearly.
I have create JPanel include three JPanel:
Left Panel and right upper-panel and right borrom panel.
The JTable instance is on right-upper Panel.
If I edit one of row at JTable and then click JTable other row,the value can be commited. if I edit one of row and then push one Button on
the right-bottom button to see the editting cell value.It does not commit value.
when I use debug style, and set breakpoint the
foucsGained or KeyTyped,
It never stopes at there,So I assume that the Editing cell never get focus.
Is there a bug at Java if we move focus on other Panel, that JTable can not detect the Focus lost or focus gained event?
Thanks