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Home » Java » Swing » showMessageDialog Java Swing Example
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showMessageDialog Java Swing Example

By Dinesh Thakur

showMessageDialog Displays a modal dialog with a button labeled “OK”. It can be easily specify the message, icon, and title that will display the dialogue.

A message dialog box displays plain messages to the user and is created by using the static method showMessageDialog () of JOptionPane. The general form of showMessageDialog () method is:

 

public static void showMessageDialog(Component parent, Object message)

 

where,

 

parent is the parent frame to which dialog box is attached

 

message is the message to be displayed

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
/*<APPLET CODE = JavaExampleDialogMessageInJApplet.class WIDTH = 370 HEIGHT = 300 ></APPLET>*/
public class JavaExampleDialogMessageInJApplet extends JApplet implements ActionListener
 {
     JButton BtnInfo = new JButton("Show Information Dialog");
     JButton BtnErr = new JButton("Show Error Dialog");
     JButton BtnWarn = new JButton("Show Warning Dialog");
      JButton BtnQues = new JButton("Show Question Dialog");
     JButton BtnPln = new JButton("Show Plain Dialog");
     public void init()
       {
         Container Cntnr = getContentPane();
         Cntnr.setLayout(new FlowLayout());
         Cntnr.add(BtnInfo);
         Cntnr.add(BtnErr);
         Cntnr.add(BtnWarn);
         Cntnr.add(BtnQues);
         Cntnr.add(BtnPln);
         BtnInfo.addActionListener(this);
         BtnErr.addActionListener(this);
         BtnWarn.addActionListener(this);
         BtnQues.addActionListener(this);
         BtnPln.addActionListener(this);
       }   
          public void actionPerformed(ActionEvent e1)
           {
                String DlgTitle = "Alert Dialogs";
                String DlgMsg = "Hi from Java!";
                int DlgType = JOptionPane.PLAIN_MESSAGE;
                if(e1.getSource() == BtnInfo)
                {
                      DlgType=JOptionPane.INFORMATION_MESSAGE;
                 }     
                 else if(e1.getSource() == BtnErr)
                             {
                                DlgType = JOptionPane.ERROR_MESSAGE;
                             }
                            else if(e1.getSource() == BtnWarn)
                                 {
                                        DlgType = JOptionPane.WARNING_MESSAGE;
                                     }
                                else if(e1.getSource() == BtnQues)
                                       {
                                                    DlgType = JOptionPane.QUESTION_MESSAGE;
                                               }
                                       else if(e1.getSource() == BtnPln)
                                            {
                                                             DlgType = JOptionPane.PLAIN_MESSAGE;
                                                        }  
                                                            JOptionPane.showMessageDialog((Component) null,DlgMsg,DlgTitle,DlgType);
           }
  }

showMessageDialog Java Swing Example

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About Dinesh Thakur
Dinesh ThakurDinesh Thakur holds an B.C.A, MCDBA, MCSD certifications. Dinesh authors the hugely popular Computer Notes blog. Where he writes how-to guides around Computer fundamental , computer software, Computer programming, and web apps.

Dinesh Thakur is a Freelance Writer who helps different clients from all over the globe. Dinesh has written over 500+ blogs, 30+ eBooks, and 10000+ Posts for all types of clients.


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