Wait for a button click

Question

Hi,
Here's the problem :
my main class calls :
LoginContext loginContext = new LoginContext("Main",
new DialogCallbackHandler());
I've made a DialogCallbackHandler class which opens a JFrame with 2 fields (TextField & PasswordField) and a button "ok".
But the LoginContext wants immediately an answer (the login & the password). How can I make the loginContext waiting for the button click.
I tried with a
while(!buttonClicked);
but it's not a good solution.
I also tried with a Thread inside this loop while and sleeps (during a 500 ms). But I think there's a better solution...
Can I make a wait, and a notify for this or not.
Thank you for your help.
Yann
-- http://www.objectweb.org/jonas

Answer 1

Why don't you use the JOptionPane class.
I think it provides all that you need.
For example use the method :
     String pass = "azedvge";
     JPasswordField passwordField = new JPasswordField(20);
     int result = JOptionPane.showConfirmDialog(parentComponent, password, "Password check", JOptionPane.OK_CANCEL_OPTION, JOptionPane.PLAIN_MESSAGE);
     if (result == JOptionPane.OK_OPTION) {
          String p = new String(passwordField.getPassword());
          if (p.equals(pass)) {
               // OK !
          else {
               System.exit(0);
     else {
          System.exit(0);
I hope this helps,
Denis