Display an icon(question,warning,etc.) inside JDialog(like in JOptionPane)

Question

Hello,
because JOptionPane can't use a JPasswordField as the input component, I created a JDialog prompting the user for a password. Now I can't figure out how to show that nice look-and-feel style icon inside the dialog (the question mark that is shown when you use messageType=QUESTION_MESSAGE in JOptionPane). Shortly, this is what I have and this is what I want to get... I tried this:
dlg.getRootPane().setWindowDecorationStyle(JRootPane.QUESTION_DIALOG)But it does nothing. Could you help me, please?
Thank you
Ondra

Answer 1

Still it doesn't answer my question: how to display the LAF icon inside a JDialog.Huh?import javax.swing.*;
public class OptionPanePassword {
   public static void main(String[] args) {
      SwingUtilities.invokeLater(new Runnable() {
         @Override
         public void run() {
            new OptionPanePassword().makeUI();
   public void makeUI() {
      JLabel label =new JLabel("Enter Password: ");
      JPasswordField field = new JPasswordField(15);
      JPanel panel = new JPanel();
      BoxLayout layout = new BoxLayout(panel, BoxLayout.X_AXIS);
      panel.setLayout(layout);
      panel.add(label);
      panel.add(field);
      JOptionPane.showConfirmDialog(null, panel, "",
            JOptionPane.OK_CANCEL_OPTION, JOptionPane.QUESTION_MESSAGE);
}db