Make jFrame wait for jDialog to finish

Question

I am making a project in Netbeans i have a main Frame and some Dialog windows that open up if you press some buttons.
when one window opens i want the main Frame script to pause and wait for it to complete.
i have tried 3 different ways:
questionDialog.setVisible(true);
while (questionDialog.isVisible()) {
    try {
        Thread.sleep(200);
    } catch (Exception e) {
} but that shows the frame of the dialog box but never loads the inside and the whole application freezes.
java.awt.EventQueue.invokeLater(new Runnable() {
    public void run() {
        questionDialog.setVisible(true);
while (questionDialog.isVisible()) {
    try {
        Thread.sleep(200);
    } catch (Exception e) {
}that loaded my Dialog box but the script never waits for it to close i assume it is because it waits until "later" to show the dialog box and in that time it skips the while loop.
Thread t = new Thread(new Runnable() {
    public void run() {
        questionDialog.setVisible(true);
        while (questionDialog.isVisible()) {
            try {
                Thread.sleep(200);
            } catch (Exception e) {
t.start();
System.out.println("Dialog started");
System.out.println(questionDialog.isVisible());
try {
    t.join();
} catch (Exception e) {
}but that had the same result as the first code it waited but never showed the dialog.
where am i going wrong how should i go about this?
Scott.
EDIT:
by finish i mean become not Visible. so isVisible() will return false
Edited by: ratcateme on Nov 20, 2008 3:02 PM

Answer 1

You don't have to do anything to do that
questionDialog.setVisible(true), this method will block the thread, it would't keep going until the questionDialog is unvisible, this is the mistake of the way 1 and way 3.
and the way 2: the while block will be execute before the questionDialog.setVisible(true) is execute, so questionDialog.isVisible() will return false
my en is very poor, good luck!