Simple Java JDialog Example

Simple Java JDialog Example

Java JDialog is a top level window that takes user input.This window has a border and title.The difference between JDialog and JFrame is that JDialog window has no maximize and minimize buttons.

How to declare Java JDialog 

This is how to declare class javax.swing.JDialog.

[class JDialog extends Dialog implements WindowConstants, Accessible, RootPaneContainer
 

]

Java JDialog  Constructors

• JDialog()-creates a modeless Dialog with no frame owner or title.
• JDialog(Frame owner)-specifies frame owner but with an empty title.
• JDialog(Frame owner, String s, boolean modal)-creates a Dialog with frame owner,title, and modality.

Java JDialog  Example

[

/** * * @author Eric */

import java.awt.FlowLayout;
import javax.swing.JFrame;
import javax.swing.JDialog;
import javax.swing.JButton;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;


public class JavaJDialogExample  extends JFrame {
    public   JDialog dialog;
    JavaJDialogExample()
    {
        super("Java JDialog Example");
        dialog=new JDialog(this,"Java JDialog Example",true);
        dialog.setLayout(new FlowLayout());
        JButton button=new JButton("Close Dialog");
        button.addActionListener(new ActionListener()
        {
            public void actionPerformed(ActionEvent evt)
            {
                dialog.hide();
            }
        });
        dialog.add(button);
        dialog.setSize(300,300);
        dialog.setVisible(true);


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

}

]

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