JFrame - MouseEvent handling, 2nd

Question

Hi,
the following code has a JFrame, which opens via the JButton a second JFrame, which holds a JTable:
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
public class FrameTester {
     private void createAndShowGUI() {
          // Create and set up the window.
          JFrame frame = new JFrame("This is a Frame.");
          // Show the frame
          int width = 300;
          int height = 300;
          frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          frame.setSize(width, height);
          frame.getContentPane().setLayout(new GridLayout(3, 3));
          frame.addMouseListener(new MouseListener() {
               public void mouseClicked(MouseEvent e) {
                    System.out.println("Frame clicked.");
               public void mousePressed(MouseEvent e) {
               public void mouseReleased(MouseEvent e) {
               public void mouseEntered(MouseEvent e) {
               public void mouseExited(MouseEvent e) {
          JButton b1 = new JButton("OK");
          b1.addActionListener(new ActionListener() {
               public void actionPerformed(ActionEvent e) {
                    new FrameTable();
          JLabel jL1 = new JLabel();
          JLabel jL2 = new JLabel();
          JLabel jL3 = new JLabel();
          JLabel jL4 = new JLabel();
          JLabel jL5 = new JLabel();
          JLabel jL6 = new JLabel();
          JLabel jL7 = new JLabel();
          JLabel jL8 = new JLabel();
          frame.getContentPane().add(jL1);
          frame.getContentPane().add(jL2);
          frame.getContentPane().add(jL3);
          frame.getContentPane().add(jL4);
          frame.getContentPane().add(b1);
          frame.getContentPane().add(jL5);
          frame.getContentPane().add(jL6);
          frame.getContentPane().add(jL7);
          frame.getContentPane().add(jL8);
          // Display the window.
          frame.setVisible(true);
      * @param args
     public static void main(String[] args) {
          // TODO Auto-generated method stub
          FrameTester ft = new FrameTester();
          ft.createAndShowGUI();
} import java.awt.GridLayout;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTable;
public class FrameTable {
     FrameTable() {
          // Create and set up the window.
          JFrame frame = new JFrame("This frame has a JTable.");
          frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          frame.setLayout(new GridLayout(2, 1));
          String[] columnNames = { "First Name", "Last Name", "Id" };
          Object[][] data = { { "Mary", "Campione", new Integer(5) },
                    { "Alison", "Huml", new Integer(3) } };
          JTable table = new JTable(data, columnNames);
          JLabel jL1 = new JLabel();
          frame.getContentPane().add(jL1);
          frame.getContentPane().add(table);
          // Display the window.
          frame.pack();
          frame.setVisible(true);
}First of all, I'm wondering why the first frame closes as well, if the second one is closed by the support button for closing?
But now my main questions:
The second JFrame has a JTable. When I edit a cell, for example the ID cell (3rd column) of the first row, and hit the enter key or click inside another cell of the JTable, the current value of the edited cell is stored automatically by the JTable. But if I edit a cell and click somewhere outside the cell, for example
1. Above the cell (where in this example a JLable is placed)
2. Close the second JFrame by clicking the support button for closing
3. Click inside the first JFrame
I would like that the current edited cell stores the current value as well. How to achieve this?
Thx!

Answer 1

but I thought, that each instance of a JFrame is closed independently...It is if you choose the appropriate close operation. So again I ask why did you choose "exit" instead of one of the other options? Did you read the API to understand what all the options mean?
but no change in behavior. I found some posts that this worked for other code samples, but why not here? Then no focus lost event was generated. If you click on a label it doesn't gain focus so focus is still on the editor. If you click on a panel of the frame a panel doesn't gain focus either. So I'm not sure what you expect to happen but I guess you need to use the second approach of manually stopping cell editing when you click on another component.
If you click on the close button, the same problem is that the table doesn't lose focus. So I guess you need to add a WindowListener to the frame and manually stop editing in the windowClosing() method. You can check out my "Closing an Application" entry from the above blog.