Java/Swing JFC/OptionPane

A Program that Uses the JOptionPane Class to Get User Input

   <source lang="java">
  

import javax.swing.JOptionPane; public class MainClass {

 public static void main(String[] args) {
   String s;
   s = JOptionPane.showInputDialog("Enter an integer:");
   int x = Integer.parseInt(s);
   System.out.println("You entered " + x + ".");
 }

}

 </source>
   
  
 
  

Create a Confirm Dialog Box

   <source lang="java">
 

import javax.swing.JOptionPane; public class Main {

 public static void main(String[] argv) throws Exception {
   int response = JOptionPane.showConfirmDialog(null, "Should i delete all files?");
 }

}

 </source>
   
  
 
  

Create a Message Dialog Box

   <source lang="java">
 

import javax.swing.JOptionPane; public class Main {

 public static void main(String[] argv) throws Exception {
   JOptionPane.showMessageDialog(null, "I am happy.");
 }

}

 </source>
   
  
 
  

Create a message dialog box with different options

   <source lang="java">
 

import java.awt.ruponent; import java.awt.FlowLayout; import java.awt.HeadlessException; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JOptionPane; public class Main extends JFrame {

 public Main() throws HeadlessException {
   setSize(200, 200);
   setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   JButton button1 = new JButton("Message dialog");
   button1.addActionListener(new ActionListener() {
     public void actionPerformed(ActionEvent e) {
       JOptionPane.showMessageDialog((Component) e.getSource(), "Thank you!");
     }
   });
   JButton button2 = new JButton("Input dialog");
   button2.addActionListener(new ActionListener() {
     public void actionPerformed(ActionEvent e) {
       String text = JOptionPane.showInputDialog((Component) e.getSource(), "What is your name?");
       if (text != null && !text.equals("")) {
         JOptionPane.showMessageDialog((Component) e.getSource(), "Hello " + text);
       }
     }
   });
   JButton button3 = new JButton("Yes no dialog");
   button3.addActionListener(new ActionListener() {
     public void actionPerformed(ActionEvent e) {
       int result = JOptionPane.showConfirmDialog((Component) e.getSource(),
           "Close this application?");
       if (result == JOptionPane.YES_OPTION) {
         System.exit(0);
       } else if (result == JOptionPane.NO_OPTION) {
         System.out.println("Do nothing");
       }
     }
   });
   setLayout(new FlowLayout(FlowLayout.CENTER));
   getContentPane().add(button1);
   getContentPane().add(button2);
   getContentPane().add(button3);
 }
 public static void main(String[] args) {
   new Main().setVisible(true);
 }

}

 </source>
   
  
 
  

Customize JOptionPane buttons

   <source lang="java">
 

import javax.swing.JOptionPane; public class Main {

 public static void main(String[] argv) throws Exception {
   String[] buttons = { "Yes", "Yes to all", "No", "Cancel" };
   int rc = JOptionPane.showOptionDialog(null, "Question ?", "Confirmation",
       JOptionPane.WARNING_MESSAGE, 0, null, buttons, buttons[2]);
   System.out.println(rc);
 }

}

 </source>
   
  
 
  

Demonstrate JOptionPane

   <source lang="java">
 

/*

* Copyright (c) Ian F. Darwin, http://www.darwinsys.ru/, 1996-2002.
* All rights reserved. Software written by Ian F. Darwin and others.
* $Id: LICENSE,v 1.8 2004/02/09 03:33:38 ian Exp $
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS""
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
* 
* Java, the Duke mascot, and all variants of Sun"s Java "steaming coffee
* cup" logo are trademarks of Sun Microsystems. Sun"s, and James Gosling"s,
* pioneering role in inventing and promulgating (and standardizing) the Java 
* language and environment is gratefully acknowledged.
* 
* The pioneering role of Dennis Ritchie and Bjarne Stroustrup, of AT&T, for
* inventing predecessor languages C and C++ is also gratefully acknowledged.
*/

import java.awt.Container; import java.awt.FlowLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JOptionPane; /**

* Demonstrate JOptionPane
* 
* @author Ian Darwin
*/

public class JOptionDemo extends JFrame {

 // Constructor
 JOptionDemo(String s) {
   super(s);
   Container cp = getContentPane();
   cp.setLayout(new FlowLayout());
   JButton b = new JButton("Give me a message");
   b.addActionListener(new ActionListener() {
     public void actionPerformed(ActionEvent e) {
       JOptionPane.showMessageDialog(JOptionDemo.this,
           "This is your message: etaoin shrdlu", "Coded Message",
           JOptionPane.INFORMATION_MESSAGE);
     }
   });
   cp.add(b);
   b = new JButton("Goodbye!");
   b.addActionListener(new ActionListener() {
     public void actionPerformed(ActionEvent e) {
       System.exit(0);
     }
   });
   cp.add(b);
   // size the main window
   pack();
 }
 public static void main(String[] arg) {
   JOptionDemo x = new JOptionDemo("Testing 1 2 3...");
   x.setVisible(true);
 }

}

 </source>
   
  
 
  

Demonstrates JoptionPane

   <source lang="java">
 

// : c14:MessageBoxes.java // Demonstrates JoptionPane. // <applet code=MessageBoxes width=200 height=150></applet> // From "Thinking in Java, 3rd ed." (c) Bruce Eckel 2002 // www.BruceEckel.ru. See copyright notice in CopyRight.txt. import java.awt.Container; import java.awt.FlowLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JApplet; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JOptionPane; import javax.swing.JTextField; public class MessageBoxes extends JApplet {

 private JButton[] b = { new JButton("Alert"), new JButton("Yes/No"),
     new JButton("Color"), new JButton("Input"), new JButton("3 Vals") };
 private JTextField txt = new JTextField(15);
 private ActionListener al = new ActionListener() {
   public void actionPerformed(ActionEvent e) {
     String id = ((JButton) e.getSource()).getText();
     if (id.equals("Alert"))
       JOptionPane.showMessageDialog(null, "There"s a bug on you!",
           "Hey!", JOptionPane.ERROR_MESSAGE);
     else if (id.equals("Yes/No"))
       JOptionPane.showConfirmDialog(null, "or no", "choose yes",
           JOptionPane.YES_NO_OPTION);
     else if (id.equals("Color")) {
       Object[] options = { "Red", "Green" };
       int sel = JOptionPane.showOptionDialog(null, "Choose a Color!",
           "Warning", JOptionPane.DEFAULT_OPTION,
           JOptionPane.WARNING_MESSAGE, null, options, options[0]);
       if (sel != JOptionPane.CLOSED_OPTION)
         txt.setText("Color Selected: " + options[sel]);
     } else if (id.equals("Input")) {
       String val = JOptionPane
           .showInputDialog("How many fingers do you see?");
       txt.setText(val);
     } else if (id.equals("3 Vals")) {
       Object[] selections = { "First", "Second", "Third" };
       Object val = JOptionPane.showInputDialog(null, "Choose one",
           "Input", JOptionPane.INFORMATION_MESSAGE, null,
           selections, selections[0]);
       if (val != null)
         txt.setText(val.toString());
     }
   }
 };
 public void init() {
   Container cp = getContentPane();
   cp.setLayout(new FlowLayout());
   for (int i = 0; i < b.length; i++) {
     b[i].addActionListener(al);
     cp.add(b[i]);
   }
   cp.add(txt);
 }
 public static void main(String[] args) {
   run(new MessageBoxes(), 200, 200);
 }
 public static void run(JApplet applet, int width, int height) {
   JFrame frame = new JFrame();
   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   frame.getContentPane().add(applet);
   frame.setSize(width, height);
   applet.init();
   applet.start();
   frame.setVisible(true);
 }

} ///:~

 </source>
   
  
 
  

Dialog with default options

   <source lang="java">
 

import java.awt.ruponent; import javax.swing.JOptionPane; public class Main {

 public static void main(String[] argv) throws Exception {
   int i = ok("Done.");
   System.out.println("ret : " + i);
 }
 public static int ok(String theMessage) {
   int result = JOptionPane.showConfirmDialog((Component) null, theMessage,
       "alert", JOptionPane.DEFAULT_OPTION);
   return result;
 }

}

 </source>
   
  
 
  

Display error message dialog with JOptionPane.ERROR_MESSAGE

   <source lang="java">
 

import javax.swing.JOptionPane; import javax.swing.JPanel; public class JOptionPaneERROR_MESSAGE {

 public static void main(String[] args) {
   final JPanel panel = new JPanel();
   JOptionPane.showMessageDialog(panel, "Could not open file", "Error", JOptionPane.ERROR_MESSAGE);
 }

}

 </source>
   
  
 
  

Display information message dialog with JOptionPane.INFORMATION_MESSAGE

   <source lang="java">
 

import javax.swing.JOptionPane; import javax.swing.JPanel; public class JOptionPaneINFORMATION_MESSAGE {

 public static void main(String[] args) {
   final JPanel panel = new JPanel();
   JOptionPane.showMessageDialog(panel, "Download completed", "Question",
       JOptionPane.INFORMATION_MESSAGE);
 }

}

 </source>
   
  
 
  

Display question message dialog with JOptionPane.QUESTION_MESSAGE

   <source lang="java">
 

import javax.swing.JOptionPane; import javax.swing.JPanel; public class JOptionPaneQUESTION_MESSAGE {

 public static void main(String[] args) {
   final JPanel panel = new JPanel();

   JOptionPane.showMessageDialog(panel, "Are you sure to quit?", "Question",
       JOptionPane.QUESTION_MESSAGE);
 }

}

 </source>
   
  
 
  

Display warning message dialog with JOptionPane.WARNING_MESSAGE

   <source lang="java">
 

import javax.swing.JOptionPane; import javax.swing.JPanel; public class JOptionPaneWARNING_MESSAGE {

 public static void main(String[] args) {
   final JPanel panel = new JPanel();
   JOptionPane.showMessageDialog(panel, "A deprecated call", "Warning",
       JOptionPane.WARNING_MESSAGE);
 }

}

 </source>
   
  
 
  

Exercise Options

   <source lang="java">
 

import javax.swing.JFrame; import javax.swing.JOptionPane; import javax.swing.JPasswordField; import javax.swing.JTextField; public class Main {

 public static void main(String[] args) {
   JFrame frame = new JFrame();
   frame.setSize(200, 200);
   frame.setVisible(true);
   JOptionPane.showMessageDialog(frame, "A");
   JOptionPane.showMessageDialog(frame, "B", "message", JOptionPane.WARNING_MESSAGE);
   int result = JOptionPane.showConfirmDialog(null, "Remove now?");
   switch (result) {
   case JOptionPane.YES_OPTION:
     System.out.println("Yes");
     break;
   case JOptionPane.NO_OPTION:
     System.out.println("No");
     break;
   case JOptionPane.CANCEL_OPTION:
     System.out.println("Cancel");
     break;
   case JOptionPane.CLOSED_OPTION:
     System.out.println("Closed");
     break;
   }
   String name = JOptionPane.showInputDialog(null, "Please enter your name.");
   System.out.println(name);
   JTextField userField = new JTextField();
   JPasswordField passField = new JPasswordField();
   String message = "Please enter your user name and password.";
   result = JOptionPane.showOptionDialog(frame, new Object[] { message, userField, passField },
       "Login", JOptionPane.OK_CANCEL_OPTION, JOptionPane.QUESTION_MESSAGE, null, null, null);
   if (result == JOptionPane.OK_OPTION)
     System.out.println(userField.getText() + " " + new String(passField.getPassword()));
 }

}

 </source>
   
  
 
  

JOptionPane demo

   <source lang="java">
 

/* Definitive Guide to Swing for Java 2, Second Edition By John Zukowski ISBN: 1-893115-78-X Publisher: APress

• /

import java.awt.BorderLayout; import java.awt.ruponent; import java.awt.Container; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.Icon; import javax.swing.JButton; import javax.swing.JDialog; import javax.swing.JFrame; import javax.swing.JOptionPane; import javax.swing.JSlider; import javax.swing.event.ChangeEvent; import javax.swing.event.ChangeListener; public class ManualDisplayPopup {

 public static void main(String args[]) {
   JFrame frame = new JFrame("NoButton Popup");
   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   JButton button = new JButton("Ask");
   ActionListener actionListener = new ActionListener() {
     public void actionPerformed(ActionEvent actionEvent) {
       Component source = (Component) actionEvent.getSource();
       JOptionPane optionPane = new JOptionPane("Continue printing?",
           JOptionPane.QUESTION_MESSAGE, JOptionPane.YES_NO_OPTION);
       JDialog dialog = optionPane.createDialog(source,
           "Manual Creation");
       dialog.show();
       int selection = OptionPaneUtils.getSelection(optionPane);
       System.out.println(selection);
     }
   };
   button.addActionListener(actionListener);
   Container contentPane = frame.getContentPane();
   contentPane.add(button, BorderLayout.SOUTH);
   frame.setSize(300, 200);
   frame.setVisible(true);
 }

} final class OptionPaneUtils {

 private OptionPaneUtils() {
 }
 public static JOptionPane getNarrowOptionPane(int maxCharactersPerLineCount) {
   // Our inner class definition
   class NarrowOptionPane extends JOptionPane {
     int maxCharactersPerLineCount;
     NarrowOptionPane(int maxCharactersPerLineCount) {
       this.maxCharactersPerLineCount = maxCharactersPerLineCount;
     }
     public int getMaxCharactersPerLineCount() {
       return maxCharactersPerLineCount;
     }
   }
   return new NarrowOptionPane(maxCharactersPerLineCount);
 }
 public static JButton getButton(final JOptionPane optionPane, String text,
     Icon icon) {
   final JButton button = new JButton(text, icon);
   ActionListener actionListener = new ActionListener() {
     public void actionPerformed(ActionEvent actionEvent) {
       // Return current text label, instead of argument to method
       optionPane.setValue(button.getText());
     }
   };
   button.addActionListener(actionListener);
   return button;
 }
 public static JSlider getSlider(final JOptionPane optionPane) {
   JSlider slider = new JSlider();
   slider.setMajorTickSpacing(10);
   slider.setPaintTicks(true);
   slider.setPaintLabels(true);
   ChangeListener changeListener = new ChangeListener() {
     public void stateChanged(ChangeEvent changeEvent) {
       JSlider theSlider = (JSlider) changeEvent.getSource();
       if (!theSlider.getValueIsAdjusting()) {
         optionPane.setInputValue(new Integer(theSlider.getValue()));
       }
     }
   };
   slider.addChangeListener(changeListener);
   return slider;
 }
 public static int getSelection(JOptionPane optionPane) {
   // Default return value, signals nothing selected
   int returnValue = JOptionPane.CLOSED_OPTION;
   // Get selected Value
   Object selectedValue = optionPane.getValue();
   System.out.println(selectedValue);
   // If none, then nothing selected
   if (selectedValue != null) {
     Object options[] = optionPane.getOptions();
     if (options == null) {
       // default buttons, no array specified
       if (selectedValue instanceof Integer) {
         returnValue = ((Integer) selectedValue).intValue();
       }
     } else {
       // Array of option buttons specified
       for (int i = 0, n = options.length; i < n; i++) {
         if (options[i].equals(selectedValue)) {
           returnValue = i;
           break; // out of for loop
         }
       }
     }
   }
   return returnValue;
 }

}

 </source>
   
  
 
  

JOptionPane utilities

   <source lang="java">
 

/* Definitive Guide to Swing for Java 2, Second Edition By John Zukowski ISBN: 1-893115-78-X Publisher: APress

• /

import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.Icon; import javax.swing.JButton; import javax.swing.JOptionPane; import javax.swing.JSlider; import javax.swing.event.ChangeEvent; import javax.swing.event.ChangeListener; public final class OptionPaneUtils {

 private OptionPaneUtils() {
 }
 public static JOptionPane getNarrowOptionPane(int maxCharactersPerLineCount) {
   // Our inner class definition
   class NarrowOptionPane extends JOptionPane {
     int maxCharactersPerLineCount;
     NarrowOptionPane(int maxCharactersPerLineCount) {
       this.maxCharactersPerLineCount = maxCharactersPerLineCount;
     }
     public int getMaxCharactersPerLineCount() {
       return maxCharactersPerLineCount;
     }
   }
   return new NarrowOptionPane(maxCharactersPerLineCount);
 }
 public static JButton getButton(final JOptionPane optionPane, String text,
     Icon icon) {
   final JButton button = new JButton(text, icon);
   ActionListener actionListener = new ActionListener() {
     public void actionPerformed(ActionEvent actionEvent) {
       // Return current text label, instead of argument to method
       optionPane.setValue(button.getText());
     }
   };
   button.addActionListener(actionListener);
   return button;
 }
 public static JSlider getSlider(final JOptionPane optionPane) {
   JSlider slider = new JSlider();
   slider.setMajorTickSpacing(10);
   slider.setPaintTicks(true);
   slider.setPaintLabels(true);
   ChangeListener changeListener = new ChangeListener() {
     public void stateChanged(ChangeEvent changeEvent) {
       JSlider theSlider = (JSlider) changeEvent.getSource();
       if (!theSlider.getValueIsAdjusting()) {
         optionPane.setInputValue(new Integer(theSlider.getValue()));
       }
     }
   };
   slider.addChangeListener(changeListener);
   return slider;
 }
 public static int getSelection(JOptionPane optionPane) {
   // Default return value, signals nothing selected
   int returnValue = JOptionPane.CLOSED_OPTION;
   // Get selected Value
   Object selectedValue = optionPane.getValue();
   System.out.println(selectedValue);
   // If none, then nothing selected
   if (selectedValue != null) {
     Object options[] = optionPane.getOptions();
     if (options == null) {
       // default buttons, no array specified
       if (selectedValue instanceof Integer) {
         returnValue = ((Integer) selectedValue).intValue();
       }
     } else {
       // Array of option buttons specified
       for (int i = 0, n = options.length; i < n; i++) {
         if (options[i].equals(selectedValue)) {
           returnValue = i;
           break; // out of for loop
         }
       }
     }
   }
   return returnValue;
 }

}

 </source>
   
  
 
  

Localize a JOptionPane dialog

   <source lang="java">
 

[JOptionPane_en.properties] Yes=Yes No=No Cancel=Cancel SaveMsg=Do you want to save your data [JOptionPane_fr.properties] Yes=Oui No=Non Cancel=Annuler SaveMsg=Voulez-vous sauvegarder vos donnees

 </source>
   
  
 
  

Message dialog helper

   <source lang="java">
  

/*

* Copyright (C) 2001-2003 Colin Bell
* colbell@users.sourceforge.net
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

import java.awt.ruponent; import java.awt.Frame; import java.io.File; import javax.swing.JComponent; import javax.swing.JFileChooser; import javax.swing.JOptionPane; /**

* This class provides some methods for using standard JDK dialogs.
*
* @author 
*/

public class Dialogs {

 public static void showNotYetImplemented(Component owner)
 {
   JOptionPane.showMessageDialog(owner, "Not Yet Implemented","", JOptionPane.INFORMATION_MESSAGE);
 }
 public static boolean showYesNo(Component owner, String msg)
 {
   return showYesNo(owner, msg, "");
 }
 public static boolean showYesNo(Component owner, String msg, String title)
 {
   int rc = JOptionPane.showConfirmDialog(owner, msg, title,
                       JOptionPane.YES_NO_OPTION);
   return rc == JOptionPane.YES_OPTION;
 }
 public static void showOk(Component owner, String msg)
 {
   JOptionPane.showMessageDialog(owner, msg, "", JOptionPane.INFORMATION_MESSAGE);
 }
 private static boolean canSaveToFile(Frame parentFrame, File outFile)
 {
   if (!outFile.exists())
   {
     return true;
   }
   String msg = "Alreadyexists" + outFile.getAbsolutePath();
   if (!Dialogs.showYesNo(parentFrame, msg))
   {
     return false;
   }
   if (!outFile.canWrite())
   {
     msg = "Cannotwrite" + outFile.getAbsolutePath();
     Dialogs.showOk(parentFrame, msg);
     return false;
   }
   outFile.delete();
   return true;
 }

}

 </source>
   
  
 
  

Modal dialog with OK/cancel and a text field

   <source lang="java">
 

import javax.swing.JFrame; import javax.swing.JOptionPane; public class Main {

 public static void main(String[] argv) throws Exception {
   JFrame frame = new JFrame();
   String message = "message";
   String text = JOptionPane.showInputDialog(frame, message);
   if (text == null) {
     // User clicked cancel
   }
 }

}

 </source>
   
  
 
  

Modal dialog with yes/no button

   <source lang="java">
 

import javax.swing.JFrame; import javax.swing.JOptionPane; public class Main {

 public static void main(String[] argv) throws Exception {
   JFrame frame = new JFrame();
   String message = "message";
   int answer = JOptionPane.showConfirmDialog(frame, message);
   if (answer == JOptionPane.YES_OPTION) {
     // User clicked YES.
   } else if (answer == JOptionPane.NO_OPTION) {
     // User clicked NO.
   }
 }

}

 </source>
   
  
 
  

Modifiable JOptionPane

   <source lang="java">
  

/*

* $Id: ModifiableJOptionPane.java,v 1.1.1.1 2005/04/07 18:36:21 pocho Exp $
*/

import java.awt.ruponent; import java.awt.HeadlessException; import javax.swing.Icon; import javax.swing.JDialog; import javax.swing.JInternalFrame; import javax.swing.JOptionPane;

/**

* {@link javax.swing.JOptionPane} that can be modified for creating resizable
* dialogs and so on. Default implementation of {@link javax.swing.JOptionPane}
* creates allways unresizable dialog.
* 
* @version $Name:  $ - $Revision: 1.1.1.1 $ - $Date: 2005/04/07 18:36:21 $
*/

public class ModifiableJOptionPane extends JOptionPane {

 private boolean resizable;
 public ModifiableJOptionPane() {
   super();
 }
 /**
  * @param message
  */
 public ModifiableJOptionPane(Object message) {
   super(message);
 }
 /**
  * @param message
  * @param messageType
  */
 public ModifiableJOptionPane(Object message, int messageType) {
   super(message, messageType);
 }
 /**
  * @param message
  * @param messageType
  * @param optionType
  */
 public ModifiableJOptionPane(Object message, int messageType, int optionType) {
   super(message, messageType, optionType);
 }
 /**
  * @param message
  * @param messageType
  * @param optionType
  * @param icon
  */
 public ModifiableJOptionPane(Object message, int messageType, int optionType,
                             Icon icon) {
   super(message, messageType, optionType, icon);
 }
 /**
  * @param message
  * @param messageType
  * @param optionType
  * @param icon
  * @param options
  */
 public ModifiableJOptionPane(Object message, int messageType, int optionType,
                             Icon icon, Object[] options) {
   super(message, messageType, optionType, icon, options);
 }
 /**
  * @param message
  * @param messageType
  * @param optionType
  * @param icon
  * @param options
  * @param initialValue
  */
 public ModifiableJOptionPane(Object message, int messageType, int optionType,
                             Icon icon, Object[] options, Object initialValue) {
   super(message, messageType, optionType, icon, options, initialValue);
 }
 
 /**
  * @see javax.swing.JOptionPane#createDialog(java.awt.ruponent, java.lang.String)
  */
 public JDialog createDialog(Component parentComponent, String title)
     throws HeadlessException {
   JDialog dialog = super.createDialog(parentComponent, title);
   dialog.setResizable(isResizable());
   return dialog;
 }
 
 
 /**
  * @see javax.swing.JOptionPane#createInternalFrame(java.awt.ruponent, java.lang.String)
  */
 public JInternalFrame createInternalFrame(Component parentComponent,
                                           String title) {
   JInternalFrame frame = super.createInternalFrame(parentComponent, title);
   frame.setResizable(isResizable());
   return frame;
 }
 
 public void setResizable(boolean b) {
   this.resizable = b;
 }
 
 public boolean isResizable() {
   return resizable;
 }

}

 </source>
   
  
 
  

OK cancel option dialog

   <source lang="java">
 

import java.awt.ruponent; import javax.swing.JOptionPane; public class Main {

 public static void main(String[] argv) throws Exception {
   int i = okcancel("Are your sure ?");
   System.out.println("ret : " + i);
 }
 public static int okcancel(String theMessage) {
   int result = JOptionPane.showConfirmDialog((Component) null, theMessage,
       "alert", JOptionPane.OK_CANCEL_OPTION);
   return result;
 }

}

 </source>
   
  
 
  

OptionPane Sample: simple dialog

   <source lang="java">
 

import java.awt.BorderLayout; import java.awt.ruponent; import java.awt.Container; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JOptionPane; public class OptionPaneSample {

 public static void main(String args[]) {
   JFrame f = new JFrame("JOptionPane Sample");
   f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   Container content = f.getContentPane();
   JButton button = new JButton("Ask");
   ActionListener actionListener = new ActionListener() {
     public void actionPerformed(ActionEvent actionEvent) {
       Component source = (Component) actionEvent.getSource();
       Object response = JOptionPane.showInputDialog(source,
           "Where do you want to go tomorrow?",
           "JOptionPane Sample", JOptionPane.QUESTION_MESSAGE,
           null, new String[] { "A","B", "C","D","E" },"E");
       System.out.println("Response: " + response);
     }
   };
   button.addActionListener(actionListener);
   content.add(button, BorderLayout.CENTER);
   f.setSize(300, 200);
   f.setVisible(true);
 }

}

 </source>
   
  
 
  

Show a message dialog with JOptionPane

   <source lang="java">
 

import javax.swing.JOptionPane; public class Main {

 public static void main(String[] argv) {
   JOptionPane.showMessageDialog(null, "The message", "The Title", JOptionPane.INFORMATION_MESSAGE);
 }

}

 </source>
   
  
 
  

Show message in two lines in a dialog box

   <source lang="java">
 

import javax.swing.JFrame; import javax.swing.JOptionPane; public class Main {

 public static void main(String[] argv) throws Exception {
   // Modal dialog with OK button
   String message = "Line1\nLine2";
   JFrame frame = new JFrame();
   JOptionPane.showMessageDialog(frame, message);
 }

}

 </source>
   
  
 
  

Simple Input Dialog

   <source lang="java">
 

import java.awt.BorderLayout; import java.awt.ruponent; import java.awt.Container; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JOptionPane; public class SamplePopup {

 public static void main(String args[]) {
   JFrame frame = new JFrame("Sample Popup");
   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   JButton button = new JButton("Ask");
   ActionListener actionListener = new ActionListener() {
     public void actionPerformed(ActionEvent actionEvent) {
       Component source = (Component) actionEvent.getSource();
       Object response = JOptionPane.showInputDialog(source,
           "Where would you like to go to lunch?",
           "Select a Destination", JOptionPane.QUESTION_MESSAGE,
           null, new String[] { "A", "B","C", "D", "E" },"B");
       System.out.println("Response: " + response);
     }
   };
   button.addActionListener(actionListener);
   Container contentPane = frame.getContentPane();
   contentPane.add(button, BorderLayout.SOUTH);
   frame.setSize(300, 200);
   frame.setVisible(true);
 }

}

 </source>
   
  
 
  

Use a JOptionPane

   <source lang="java">
 

import java.awt.ruponent; import javax.swing.JOptionPane; public class Main {

 public static int yesno(String theMessage) {
   int result = JOptionPane.showConfirmDialog((Component) null, theMessage,
       "alert", JOptionPane.YES_NO_OPTION);
   return result;
 }
 public static void main(String args[]) {
   int i = yesno("Are your sure ?");
   System.out.println("ret : " + i);
 }

}

 </source>
   
  
 
  

Wait (forever) for a non-null click and then quit

   <source lang="java">
 

import javax.swing.JDialog; import javax.swing.JOptionPane; public class Main {

 public static void main(String[] argv) throws Exception {
   JOptionPane pane = new JOptionPane("your message",JOptionPane.ERROR_MESSAGE, JOptionPane.OK_OPTION);
   JDialog d = pane.createDialog(null, "title");
   d.pack();
   d.setModal(false);
   d.setVisible(true);
   while (pane.getValue() == JOptionPane.UNINITIALIZED_VALUE) {
     try {
       Thread.sleep(100);
     } catch (InterruptedException ie) {
     }
   }
   System.exit(0);
 }

}

 </source>
   
  
 
  

Yes no cancel dialog

   <source lang="java">
 

import java.awt.ruponent; import javax.swing.JOptionPane; public class Main {

 public static void main(String[] argv) throws Exception {
   int i = yesnocancel("Are your sure ?");
   System.out.println("ret : " + i);
 }
 public static int yesnocancel(String theMessage) {
   int result = JOptionPane.showConfirmDialog((Component) null, theMessage,"alert", JOptionPane.YES_NO_CANCEL_OPTION);
   return result;
 }

}

 </source>