How to create a modal JDialog?

Question

I want to create a modal JDialog which will be called from JMenuItem. I have read some post and found an example (look belove). In this example main frame is called from main method. How to create something like that, but in main method will only be called constructor of main class?

Exmaple: http://www.rsdn.ru/forum/java/3526582.1

Update:

My code:

import java.awt.event.*;
import javax.swing.*;

 public class JD extends JFrame implements ActionListener {
private static final long serialVersionUID = 1L;
private JMenuBar menubar = new JMenuBar();
private JMenu menu = new JMenu("Options");
private JMenuItem item = new JMenuItem("Try this");
JLabel label = new JLabel("label");
JTextField text = new JTextField(10);
JPanel panel = new JPanel();
JButton b = new JButton("get and close");

JD() {
    super("Frame");
    setSize(200, 200);
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setLocationRelativeTo(null);
    menu.add(item);
    menubar.add(menu);
    setJMenuBar(menubar);
    item.addActionListener(this);
    setVisible(true);
}

public void actionPerformed(ActionEvent evnt) {
    Object source = evnt.getSource();
    if (source == item) {
        new Dialog(new JFrame());
    }
}

private class Dialog extends JDialog {
    private static final long serialVersionUID = 1L;

    Dialog(JFrame frame) {
        super(frame, true);
        setSize(200, 200);
        setLocationRelativeTo(null);
        panel.setLayout(null);
        label.setBounds(10, 10, 50, 15);
        panel.add(label);
        text.setBounds(60, 8, 50, 19);
        panel.add(text);
        add(panel);
        b.setBounds(40, 40, 100, 25);
        panel.add(b);
        b.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent evnt) {
                System.out.println(text.getText());
                dispose();
            }
        });
        setVisible(true);
    }
}

public static void main(String[] args) {
    new JD();
}
}

dont expect somebody to write it up for you. try it yourself. — Ankit Rustagi, Oct 27 '13 at 17:36
I tried. Best result was a JDialog with JTextField and button, each time I called JDialog, my output from JTextField started to multiple. — usr999, Oct 27 '13 at 17:39
It would have been better if you would have put up your code and asked whats wrong with it. — Ankit Rustagi, Oct 27 '13 at 17:45

score 2 · Answer 1 · edited Dec 14 '22 at 00:29

2

There is a Java tutorial on it.

From the example:

new JDialog(this, "", Dialog.ModalityType.DOCUMENT_MODAL);

edited Dec 14 '22 at 00:29

Michael Myers

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answered Oct 27 '13 at 17:38

skynet

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This does the same effect as mine code. It multiplies text from JTextField. – usr999 Oct 27 '13 at 17:54
@usr999 then I don't understand your question. You need to edit to clarify what you are asking. – skynet Oct 27 '13 at 18:00
Thank you. I have found my problem. – usr999 Oct 27 '13 at 18:03

How to create a modal JDialog?

1 Answers1