How to use javax.swing in Pocket PC

I want to write an application with Swing GUI interface and run on my Pocket PC (iPAQ H3870). It is possible?
I am using Jeode VM now.
Thanks.

I ran across a product called CrEme, that claims to support swing 1.1.1. I used the evaluation and it seemed to work much like Jeode. I never tried working with swing with it. Here is a link with information about CrEme:
http://www.nsicom.com/news/pressrelShow.asp?ID=304&CategoryID=1

Similar Messages

How to create a calculator by using javax swing

I try to us Javax swing make some buttons like 0 - 9 then input some numbers by using those number like a calculator. But I only can get numbers no more than 9.
Please help me.

How do you store the number the user enters? If it's in a string and the previous value was eg "1" and the user enters "2" you get "12" with a simple concatenation: val += input.
OTOH, if you work with doubles and the previous value was 1.0 and the user enters 2.0 by pressing the button you get 12.0 by multiplying 1.0 with 10 and adding 2.0: val = 10*val + input.

Don't know how to use the swing timer

Hi there,
I did this stupid game for training purposes: There are 3 buttons, 2 of them are "correct", 1 exits the program and you lost.
It works so far but when clicking the "wrong" button I thought of changing the frame to red, let the program wait for another second and only then closing the window. But somehow that doesn't work. I understand that I have to use the timer class, but somehow I don't really know how.
Thanks for helping.
Modify the program of Exercise 3 so that only one button exits the program. If the user clicks on any of the other two
buttons, the frame just changes color. The user keeps clicking until the "loosing button" is clicked. The user's goal
is to click as many times as possible.
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.Random;
public class Kap59A4 extends JFrame implements ActionListener
JButton button1 ;
JButton button2 ;
JButton button3 ;
JLabel noGames ;
int gameCounter = 0;
// constructor
public Kap59A4(String title)
    super( title );
    button1 = new JButton("Button 1");
    button2 = new JButton("Button 2");
    button3 = new JButton("Button 3");
    noGames = new JLabel("Game#: ");
    // register the Kap59A4 frame as the listener for the button.
    button1.addActionListener( this );
    button2.addActionListener( this );
    button3.addActionListener( this );
    setLayout( new FlowLayout() );
    add( button1 );
    add( button2 );
    add( button3 );
    add( noGames );
    setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
public void actionPerformed( ActionEvent evt)
    Random rand = new Random();
    int number = Math.abs( rand.nextInt() )%3; // number gets a number from 0 to 2
    if (number != 0)
      gameCounter++;
      noGames.setText("Game#: "+ gameCounter);
      getContentPane().setBackground( Color.green );
      repaint();
    else
      getContentPane().setBackground( Color.red );
      new Timer(1000, this).start();
      System.exit(0);
public static void main ( String[] args )
    Kap59A4 demo = new Kap59A4( "Click a Button" ) ;
    demo.setSize( 300, 100 );
    demo.setVisible( true );
}

Rather than pass the Timer constructor this, which would be the JFrame itself, thus resulting in the action handler for the buttons being invoked again, you should probably pass it a whole different ActionListener instance that performs the precise action you want to happen a second later.
And actually, you should probably do that for all the buttons as well -- give each an inner class implementing ActionListener so you can control the behavior of each button, and don't make the JFrame subclass implement ActionListener. Furthermore, I'd advise against subclassing JFrame.

How to use javax.* packages in Applet?

If I want use javax.media.* in an applet and hope there's no need for the visitors installing JMF in their machines,
how should I do?

Hi rapy_xjb!
It's troublesome, would need to deploy applet and all dependent classes! A lot of files to download (in jar file or not)! Think in benefits to user after installing Java plug-in. My lemma: Java and diamonds are forever!
Best regards.

Help ! inaccurate time recorded using javax.swing.timer

Hi All,
I am currently trying to write a stopwatch for timing application events such as loggon, save, exit ... for this I have created a simple Swing GUI and I am using the javax.swing.timer and updating a the time on a Jlabel. The trouble that I am having is that the time is out by up to 20 seconds over a 10 mins. Is there any way to get a more accruate time ?? The code that I am using is attached below.
private Timer run = new Timer(1000, new ActionListener() {
public void actionPerformed(ActionEvent evt) {
timeTaken.setText("<html><font size = 5><b>" + (df.format(timeHours)) + ":" + (df.format(timeMins)) + ":"
+ (df.format(timeSeconds++)) + "</b></font><html>");
receordedTimeValue = ((df.format(timeHours)) + ":" + (df.format(timeMins)) + ":"
+ (df.format(timeSeconds)));
if (timeSeconds == 60) {
timeMins++;
timeSeconds = 0;
if (timeMins == 60) {
timeHours++;
timeMins = 0;

To get more accurate time you should use the System.currentTimeMillis() method.
Try this code :
import java.util.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class CountUpLabel extends JLabel{
     javax.swing.Timer timer;
     long startTime, count;
     public CountUpLabel() {
          super(" ", SwingConstants.CENTER);
          timer = new javax.swing.Timer(500, new ActionListener() { // less than or equal to 1000 (1000, 500, 250,200,100)
               public void actionPerformed(ActionEvent event) {
                    if (startTime == -1) {
                         count = 0;
                         startTime = System.currentTimeMillis();
                    else {
                         count = System.currentTimeMillis()-startTime;
                    setText(getStringTime(count));
     private static final String getStringTime(long millis) {
          int seconds = (int)(millis/1000);
          int minutes = (int)(seconds/60);
          int hours = (int)(minutes/60);
          minutes -= hours*60;
          seconds -= (hours*3600)+(minutes*60);
          return(((hours<10)?"0"+hours:""+hours)+":"+((minutes<10)?"0"+minutes:""+minutes)+":"+((seconds<10)?"0"+seconds:""+seconds));
     public void start() {
          startTime = -1;
          timer.setInitialDelay(0);
          timer.start();
     public long stop() {
          timer.stop();
          return(count);
     public static void main(String[] args) {
          JFrame frame = new JFrame("Countdown");
          CountUpLabel countUp = new CountUpLabel();
          frame.getContentPane().add(countUp, BorderLayout.CENTER);
          frame.setBounds(200,200,200,100);
          frame.setVisible(true);
          countUp.start();
Denis

Newbie compiler help using javax.swing class

current java ver java version "1.5.0_02"
error msg
[error]
C:\Documents and Settings\Neil\Desktop\Java>javac neiltest2.java
neiltest2.java:12: package javax does not exist
import javax.swing;
^
neiltest2.java:28: cannot resolve symbol
symbol : variable JOptionPane
location: class neiltest2
JOptionPane.showMessageDialog(null, "The total is " + intSum);
^
2 errors
[error]
* neiltest2.java
* Created on 02 June 2005, 19:02
* @author Neil
* @version
import javax.swing;
public class neiltest2 {
    /** Creates new neiltest2 */
    public neiltest2() {
    * @param args the command line arguments
    public static void main (String args[]) {
        int intSum;
        intSum = 14+35;
        JOptionPane.showMessageDialog(null, "The total is " + intSum);
        System.exit(0);
}TIA
Neil

Use either
import javax.swing.JOptionPanel;
or
import javax.swing.*;
� {�

How to use the Zoom for Pocket PC 2003?

I try to use the LabVIEW7.1 PDA module zoom feature in my Pocket PC 2003. But I can not make it works right. For example, if I try to zoom to rectangle, the graph does not draw in the selected rectangle.
I attached my code.
Attachments:
sin.vi ‏48 KB

Hello,
I have taken a look at your vi and believe I understand your problem. The vi works if you allow the sine wave to draw to completion and then zoom in on a certain part of the graph. You cannot zoom while the graph is still drawing because the Zoom button click is not registered. Your program is looping inside the case structure for the run button so it does not see that the zoom button is pressed.
Also, I see that when you click Zoom and then draw the sine wave, the wave is not drawn inside the selected area. The graph goes back to its default values. This behavior is because the x and y max and min are set inside the graph properties. Whether this is set by autoscaling or by setting the max and min in the graph properties page, these values overwrite the zoom rectangle values. In LabVIEW for the PC you can set max and min values programmatically through property nodes. However, property nodes are currently not supported in LabVIEW for PDA. So, unfortunately there is no current way to programmatically change the values so that the sine wave is drawn inside the selected zoom region.
Thanks,
Caroline
National Instruments
Thanks,
Caroline Tipton
Data Management Product Manager
National Instruments

Using of javax.swing.text package

Where can I find any resources devoted to using javax.swing.text package?

At the end of the API documentation for that package you may notice this:
<quote>
Related Documentation
For overviews, tutorials, examples, guides, and tool documentation, please see:
Using Text Components, a section in The Java Tutorial.
</quote>

How to use vector in JTable? Please help......

Hi there
I can use JTable using object array to manupulate data but it has a limitation of defining number of rows of the array. Alternatively i want to use vector. Anyone help me how to convert to using vector.
Regards.
mortoza, Dhaka

hi,
you could either use javax.swing.table.DefaultTableModel because this class uses a java.util.Vector for data storage or you could implements your own TableModel by extending javax.swing.table.AbstractTableModel.
best regards, Michael

Javax.swing.JTextPane - COLOR Problem

Hi
I am using javax.swing.JTextPane object to display text recieved from two servers.
How can I make messages recieved from Server 1 to be in RED and while from Server 2
to be in Green? i.e. the window should look...
(red) Server 1 says ta ta
(green) Server 2 says Hello
My code looks....
javax.swing.JTextPane WINDOW;
String message1 = connection1.getMessage();
..........// What code should I put here??? to make this message look RED??
..........// Color of previous text should remain as it is...
WINDOW.setText(WINDOW.getText() + message1);An Example would be highly appreciated.
Regards
Fahad

Hi,
that is the wrong way - try this method in your JTextPane subclass
public void appendText(String s,Color col) {
StyledDocument sd = getStyledDocument();
SimpleAttributeSet attr = new SimpleAttributeSet();
StyleConstants.setForground(attr,col);
try { sd.insertString(sd.getLength(),s,attr); }
catch (BadLocationException e) {}
} // end of methodand use it in your code like that
WINDOW.appendText(message1,Color.red);
hope that helps
greetings Marsian

How To Use Connection pooling with j2sdkee1.3?

hi!
How to use javax.sql.ConnectionPoolDataSource and
javax.sql.PooledConnection with j2sdkee1.3.?
In j2ee1.3's deployment tool,
to specify the resource factories,
javax.sql.ConnectionPoolDataSource is not available.
Please Help me to use Connection pooling.
Dhaya.

Vendor implementations usually have a fair amount of optimization. For J2EE apps, my concern would be using your pool in transactional calls. When you make a transactional call across several beans/methods, the vendor's pool makes sure that you get the same connection each time you get a connection from the pool so that if you want to rollback the work (in case an error occurs), you can. Does your current connection pool support this?

Problem Loading an Image with javax Swing from a JApplet

First of all, i use JCreator as java creater and have the newest version of java sdk version.
Now i need to load an image from the harddrive on which the JApplet is located. I need to do this from inside the JApplet. I have put my pictures in a map 'images' which is located in the same directory as the classes + htm file. It works from inside JCreator, but as soon as i open the normal htm it just WON'T load that image (grmbl).
Here is my code for loading the image:
public BufferedImage loadImage (String filename, int transparency)
     Image image;
     if (app)
          image = Toolkit.getDefaultToolkit().getImage(("./images/"+filename));
     else
          String location = "";
          location = "./images/"+filename;
          image = Toolkit.getDefaultToolkit().getImage(location);
     MediaTracker mediaTracker = new MediaTracker(new Container());
     mediaTracker.addImage(image, 0);
     try
          mediaTracker.waitForID(0);
     catch (Exception e)
Could anybody help me out here??
I tried a url already using getCodeBase() or getDocumentBase() but that gives an error because it cannot find those if using a JApplet.

Why don't you use javax.swing.ImageIcon? If you already have a flag telling if it's an application or applet, use the getDocumentBase() to base the URL in the applet part only.

Javax.swing.JFileChooser -- open button change current directory... Why?

Hello community.
I use javax.swing.JFileChooser class. After press open button, JFileChooser change current directory. Why?
I was not find in documentation about changing curret directiry by JFileChooser. Take me please reference to doc for understanding this effect.
Thank you.

This is my code:
private void jFileChooser1ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
// label1.setText("3: "+evt.);
// label1.setText("3: ");
label1.setText(evt.getActionCommand());
System.out.println(evt.getActionCommand());
if (evt.getActionCommand().startsWith("Approve")){
label1.setText("You push Open key");
System.out.println(jFileChooser1.getCurrentDirectory().getPath());
label1.setText(jFileChooser1.getCurrentDirectory().getPath());
}else{
label1.setText("You push Close key");
I not add method for change current directory. But after press on open button javax.swing.JFileChooser class was change current directory.

Javax.swing.text complexity?

Hello,
does someone know how complex the javax.swing.text package is?
Perhaps someone knows of how many rows and/or functions the package consists?
thanks
kbj

Hello,
does someone know how complex the javax.swing.text
package is?
Perhaps someone knows of how many rows and/or
functions the package consists?
thanks
kbjDidnt count yet, but if somebody could tell me how to get all classes from a package i could easily calculate method-number.
Besides why do you want to know it ??
regards,
Tim

How to Update existing XML File Using Java Swing

Hi,
I am reading XML file and getting keywords into JList. When i add some keywords into JList through textfield and remove keywords JList, then after click on save button it should update xml file. How can i do it ?
Please provide me some code tips for updating xml file
This is the code that i am using for reading XML File:
import javax.swing.*;
import java.awt.event.*;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;
import java.io.IOException;
import java.util.*;
import java.text.Collator;
import java.util.regex.*;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import com.cloudgarden.layout.AnchorConstraint;
import com.cloudgarden.layout.AnchorLayout;
public class getKeywords extends JFrame implements ActionListener
static JPanel p;
static JLabel lbl;
static JButton btnSave,btnAdd,btnRemove;
static String path;
static Vector v;
static JList lstCur;
static JTextField txtKey;
Document dom;
static image imgval;
NodeList nodelstImage;
static AnchorLayout anchorLay;
private DefaultListModel lstCurModel;
public getKeywords()
     super("Current Keywords");
    v=new Vector();
    p=new JPanel();
    txtKey=new JTextField(10);
    btnAdd=new JButton("Add");
    btnRemove=new JButton("Remove");
    btnSave=new JButton("Save");
    lbl=new JLabel("Current Keywords");
    lstCurModel=new DefaultListModel();
        lstCur=new JList();
        JScrollPane scr=new JScrollPane(lstCur);
    runExample();
     lstCur.setModel(lstCurModel);
     p.add(lbl);
     p.add(scr);
     p.add(txtKey);
     p.add(btnAdd);
     p.add(btnRemove);
     p.add(btnSave);
     add(p);
     btnAdd.addActionListener(this);
     btnRemove.addActionListener(this);
     btnSave.addActionListener(this);
     setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
public static void main(String arg[])
     getKeywords g=new getKeywords();
     g.resize(250,400);
     g.setVisible(true);
public void actionPerformed(ActionEvent ae)
     if(ae.getSource()==btnAdd)
          lstCurModel.addElement(txtKey.getText());
     if(ae.getSource()==btnRemove)
          lstCurModel.remove(lstCur.getSelectedIndex());
     if(ae.getSource()==btnSave)
          //Code to Write
     public void runExample()
          //Parse the XML file and get the DOM object
          ParseXMLFile();
          //Get the Detail of the Image Document
          parseImageDocument();
          //Get the Detail of the LML Document
          //parseLMLDocument();
          //System.out.println(lmlval.Title);
     public void ParseXMLFile()
          //Get the Factory
          DocumentBuilderFactory builderFac = DocumentBuilderFactory.newInstance();
          try
               //Using factory get an instance of the Document Builder
               DocumentBuilder builder = builderFac.newDocumentBuilder();
               //parse using builder to get DOM representation of the XML file
               dom = builder.parse("LML.xml");
          catch(ParserConfigurationException pce)
               pce.printStackTrace();
          catch(SAXException sax)
               sax.printStackTrace();
          catch(IOException ioex)
               ioex.printStackTrace();
     public void parseImageDocument()
          //Get the root element
          Element docImgEle = dom.getDocumentElement();
          //Get a nodelist for <Image> Element
          nodelstImage = docImgEle.getElementsByTagName("Image");
          if(nodelstImage != null && nodelstImage.getLength() > 0)
               for(int i = 0; i < nodelstImage.getLength(); i++)
                    //Get the LML elements
                    Element el = (Element)nodelstImage.item(i);
                    //Get the LML object
                    getImage myImgval = new getImage();
                    imgval = myImgval.getimage(el);
                    v.addElement(new String(imgval.Thumb));
                    String[] x = Pattern.compile(",").split(imgval.Keys);
                    for (int s=0; s<x.length; s++)
                    lstCurModel.addElement(x[s].trim());
                    //System.out.println(x[s].trim());
}     Thanks
Nitin

You should update your DOM document to represent the changes that you want made.
Then, using the Transformation API you simply transform your document onto a stream representing your file. Something like this:
Transformer transformer = TransformerFactory.newInstance().newTransformer();
transformer.setOutputProperty(OutputKeys.INDENT, "yes");
// TODO - set indentation amount!
Source source = new DOMSource(dom);
Result result = new StreamResult(file);
transformer.transform(source, result);Hope this helps.

How to use javax.swing in Pocket PC

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