�� sign and Swing components in jdk1.4 and Windows XP

Having an issue that hopefully someone else has seen. When I try to display the euro sign (�) in a JTextField or JTextArea it appears as a question mark (?). I can enter the euro sign ok but its saved and displayed incorrectly.
I've noticed that this issue was fixed in 1.3 .1_02 (bug id 4447727) but I'm using 1.4.2_04 and its still an issue. Also I'm running on Windows XP Professional SP2.

Hello Mick,
sorry to be late, but may help someone other :)
Setting:
NumberFormat currencyFormat = NumberFormat.getCurrencyInstance();and:
String value = currencyFormat.format(valToDisplay);you can now use value in any component and its view is correct.
For some objects like files you also need to set the right charset (i.e. the one support the symbol you need).
For the euro symbol try "windows-1250" as charset.
Bye

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Need help with HTML and Swing Components

Dear All,
I am using HTML text for Jbutton and Jlabel and MenuItem.
But when i am trying to disable any of these, its foreground color is not being grayed out.
For that, I have overrided the setEnable() method as mentioned below:
import java.awt.*;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.*;
import javax.swing.plaf.FontUIResource;
* HtmlLabelEx.java
public class HtmlLabelEx extends javax.swing.JDialog implements MouseListener{
 * Creates new form HtmlLabelEx
 public HtmlLabelEx(java.awt.Frame parent, boolean modal) {
 super(parent, modal);
 UIManager.put("swing.boldMetal", Boolean.FALSE);
 initComponents();
 setLayout(null);
 this.addWindowListener(new WindowAdapter()
 public void windowClosing(WindowEvent event)
 System.exit(0);
 JLabel jLabel1 = new JLabel()
 public void setEnabled(boolean b)
 super.setEnabled(b);
 setForeground(b ? (Color) UIManager.get("Label.foreground") : (Color) UIManager.get("Label.disabledForeground"));
 JButton jButton1 = new JButton()
 public void setEnabled(boolean b)
 super.setEnabled(b);
 setForeground(b ? (Color) UIManager.get("Label.foreground") : (Color) UIManager.get("Label.disabledForeground"));
 add(jButton1);
 String str = "<html><body>Label</body></html>";
 System.out.println("str = "+str);
 jLabel1.setText(str);
 add(jLabel1);
 jLabel1.setBounds(10,10,100,20);
 jLabel1.setEnabled(false);
 jButton1.setText("<html><body>Button</body></html>");
 jButton1.setEnabled(true);
 jButton1.setBounds(10,50,100,20);
 System.out.println("getText = "+jLabel1.getText());
 setSize(400,400);
 addMouseListener(this);
 /** This method is called from within the constructor to
 * initialize the form.
 * WARNING: Do NOT modify this code. The content of this method is
 * always regenerated by the Form Editor.
 // <editor-fold defaultstate="collapsed" desc=" Generated Code ">
 private void initComponents() {
 getContentPane().setLayout(null);
 setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);
 pack();
 }// </editor-fold>
 * @param args the command line arguments
 public static void main(String args[]) {
 java.awt.EventQueue.invokeLater(new Runnable() {
 public void run() {
 new HtmlLabelEx(new javax.swing.JFrame(), true).setVisible(true);
 // Variables declaration - do not modify
 // End of variables declaration
 public void mouseClicked(MouseEvent e)
 if(e.getButton() == e.BUTTON3)
 JMenuItem mit = new JMenuItem("<html><body>Menu Item</body></html>");
 JPopupMenu pop = new JPopupMenu();
 pop.add(mit);
 mit.setEnabled(false);
 pop.show(this,e.getX(),e.getY());
 public void mousePressed(MouseEvent e) {
 public void mouseReleased(MouseEvent e) {
 public void mouseEntered(MouseEvent e) {
 public void mouseExited(MouseEvent e) {
But, I think it is difficult to write like this for each component.
I am looking for an optimized solution so that the change will be only in one place.
so that, It wont leads to change so many pages or so many places.
And i have the following assumptions to do this. please let me know the possibility.
1.Implementing custom UI class, extending the JButton/JMenuItem (As the BasicButton/MenuItemUI class does not have setEnabled() method to override) and putting this in UIManager.put("ButtonUI/MenuItemUI","CustomClass).
2.If there is any possibility to achieve this, by just overriting any key in the UIManager
3.By setting any client property globally.
My requirement is to do this only at one place for entire the application.So, that we need not change all the buttoins, sya some 30 buttions are there in a dialog, then we need to override each button class.
Please suggest me the possibilties..
Thank you

Hi camickr ,
I know that to set the font we have to use component.setfont().
But, as per my requirement,i am not setting any font to any component in my application.
i am just passing HTML text along with FONT tags to all the components in my Application.SO, in this case we will get bold letters and that problem fixed when we set swing.boldMetal = false in UI Manager.
But actual problem irrespective of font settings is when ever we use HTML rendered text, when the button or menuitem is disabled,then that one will not be changed to gray color. i.e., it still looks like normal controls, even it is disabled.(It is also reported as bug)
But, as per my knowledge we can fix by overrding setEnabled or paint() methods for each and every component.
But, if we do like that, for an application that has 200 buttons or MenuItems, it is difficult to follow that approach.
So, We should find a way to achieve that only in one place like using UIManager or other one as i mentioned in previous posts if possible.
I hope you understood what my problem is exactly.
Thank You
Edited by: sindhumourya on Mar 4, 2010 7:26 AM

About the difference between the AWT components and the swing components

As we know that an AWT component has a peer, but dose a lightweight component(e.g: a swing component) has also a peer? And could somebody tell me that who and how creates the CLICKED_EVENT when I click a JButton(a swing component), and where the CLICKED_EVENT to go util it was processed by a method like btn_ok_clicked(Event e)? And if I click a Button(an AWT component), what's the difference?
Thanks a lot!

The main difference is that AWT are native components, and Swing components are entirely in java written. That's besides the look and feel. There are a lot of other differences between AWT and Swing, and there are better described in the documentation.

Why is HeadlessException explicitly thrown in AWT and swing?

Hi there,
I just noticed that HeadlessException is explicitly thrown in some of the constructors in AWT and swing components since J2SE 1.4.
Given that it's a RuntimeException (unchecked) it doesn't need to be included in the throws clause of the method or constructor.
There also seems to be inconsistent application of it and inconsistent documentation in the javadoc comments.
Is this a work in progress or did some refactoring go wrong?

Most probably IE security settings preventing the js file to be executed. Replied in your other post:
Unable to get property 'style' of undefined or null reference in sp.ui.dialog.debug.js
Thanks,
Sohel Rana
http://ranaictiu-technicalblog.blogspot.com

Database Connection to AWT and Swings

How do we provide database connection to AWT and swing components?
Is their any possibility to create database connection?
Thanks in advance

Just create an independent DAO class which does all the database/JDBC tasks.
Then use this DAO class as you use every other class in your AWT/Swing application.

How Do We Know the Product And the Components Installed on R/3 System ????

Hi Experts,
How Do We Know which Product We have on Our Machine And Which Components Are Installed And Their Versions ????
Please Let Me know the Process To get Al these Details ,,,,
Regards
Khanna

Hi Rajesh,
Go through the following link:
http://help.sap.com/saphelp_nw04s/helpdata/en/9e/35d022edd4d646a53a56a4da60f9db/frameset.htm
Reward points if helpful.
Regards,
Renuka.

Swing Components and Fullscreen Exclusive

Hi, I am trying to write a program that can switch between full screen and windowed mode seamlessly, while still being able to use standard swing components. I have never worked with the full screen exclusive mode before and am having trouble getting the components to repaint properly.
The following code works fine in the windowed and undecorated modes, however when I switch to fullscreen exclusive mode all components disappear and only repaint upon mouseover or other interaction. Calls to repaint do not make any difference.
import java.awt.Dimension;
import java.awt.DisplayMode;
import java.awt.FlowLayout;
import java.awt.GraphicsDevice;
import java.awt.GraphicsEnvironment;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.WindowConstants;
public class FullscreenTests {
     private static boolean hwlast = false;
     private static GraphicsDevice dev = GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice();
     public static void main(String[] args) {
          final JFrame fMain = new JFrame("Title");
          fMain.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
          fMain.getRootPane().setLayout(new FlowLayout());
          JButton win = new JButton("Windowed");
          win.addActionListener(new ActionListener () {
               public void actionPerformed (ActionEvent e) {
                    setWindowed(fMain);
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          JButton ful = new JButton("Fullscreen");
          ful.addActionListener(new ActionListener () {
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          fMain.getRootPane().add(ful);
          JButton hw = new JButton("HW Fullscreen");
          hw.addActionListener(new ActionListener () {
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                    setHWFullscreen(fMain);
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          setWindowed(fMain);
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          if (hwlast == true) {
               dev.setFullScreenWindow(null);
               hwlast = false;
          f.dispose();
          f.setIgnoreRepaint(false);
          f.setUndecorated(false);
          Dimension d = Toolkit.getDefaultToolkit().getScreenSize();
          f.setSize(new Dimension(808,634));
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          f.setLocation((d.width-f.getWidth())/2, (d.height-f.getHeight())/2);
          f.setVisible(true);
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          hwlast = true;
          f.dispose();
          f.setUndecorated(true);
          f.setIgnoreRepaint(true);
          f.setVisible(true);
          dev.setFullScreenWindow(f);
          dev.setDisplayMode(new DisplayMode(800, 600, 32, DisplayMode.REFRESH_RATE_UNKNOWN));
     public static void setFullscreen(JFrame f) {
          if (hwlast == true) {
               dev.setFullScreenWindow(null);
               hwlast = false;
          f.dispose();
          f.setIgnoreRepaint(false);
          f.setUndecorated(true);
          f.setSize(Toolkit.getDefaultToolkit().getScreenSize());
          f.setLocation(0,0);
          f.setVisible(true);
}On the same note, if there are better ways of doing this I would be glad to know. This is just a quick test so I haven't done any checks etc when switching to fullscreen exclusive.

   public static void setHWFullscreen (JFrame f) {
      hwlast = true;
      f.dispose ();
      f.setUndecorated (true);
      f.setIgnoreRepaint (true);
      // add this
      Graphics g = f.getGraphics ();
      f.paintAll (g);
      f.setVisible (true);
      dev.setFullScreenWindow (f);
      dev.setDisplayMode (new DisplayMode (800, 600, 32, DisplayMode.REFRESH_RATE_UNKNOWN));
   }db

Why the AWT components are called heavy-weight and SWING as light-weight?

Why the AWT components are called heavy-weight and SWING as light-weight?.
Building our own components means overhead on JVM. hence in what sence the SWING components are called light weight.?
I know that the Swing componets are the components which are not going to depend upon peer classes and render, OS independent LOOK n FEEL.
Thanks,
Sanath Kumar

All extensions of Component are considered lightweight since, as you point out, they don't have their own dedicated native peer.
Essentially a lightweight component only has a canvas on which to draw itself and some means of receiving events from the system. In fact, there is no need to have one of these "canvas" and "event" objects for each component - the parent component can manage these abilities on behalf of its children. Eventually you end up with only top-level components needing to be heavyweight in order to communicate with the windowing system.
A lightweight component therefore has the minimal dependency on the underlying windowing system giving you maximum cross-platform flexibility.
It is usually true that lightweight => slower and heavyweight => faster since it is reasonable to assume that native peers will be optimal for the windowing system. However, that's not the point of the lightweight/heavyweight distinction.
Hope this helps.

HT201413 I am running Windows 7, ITUNES 10.6.3.25. I am unable to see my Iphone/sync my iphone in Itunes. I have uninstalled all components of Itunes and downloaded the newest version to no avail. Please help.....Thanks

I am running Windows 7, ITUNES 10.6.3.25. I am unable to see my Iphone/sync my iphone in Itunes. I have uninstalled all components of Itunes and downloaded the newest version to no avail. Please help.....Thanks
I am attaching the Diagnostics data below:
Microsoft Windows 7 x64 Home Premium Edition Service Pack 1 (Build 7601)
Dell Inc. Inspiron N7010
iTunes 10.6.3.25
QuickTime not available
FairPlay 1.14.43
Apple Application Support 2.1.9
iPod Updater Library 10.0d2
CD Driver 2.2.0.1
CD Driver DLL 2.1.1.1
Apple Mobile Device 5.2.0.6
Apple Mobile Device Driver 1.59.0.0
Bonjour 3.0.0.10 (333.10)
Gracenote SDK 1.9.6.502
Gracenote MusicID 1.9.6.115
Gracenote Submit 1.9.6.143
Gracenote DSP 1.9.6.45
iTunes Serial Number 0016AA9C0126E318
Current user is not an administrator.
The current local date and time is 2012-07-05 11:42:18.
iTunes is not running in safe mode.
WebKit accelerated compositing is enabled.
HDCP is supported.
Core Media is supported.
Video Display Information
Intel Corporation, Intel(R) HD Graphics
**** External Plug-ins Information ****
No external plug-ins installed.
**** Device Connectivity Tests ****
iPodService 10.6.3.25 (x64) is currently running.
iTunesHelper 10.6.3.25 is currently running.
Apple Mobile Device service 3.3.0.0 is currently running.
Universal Serial Bus Controllers:
Intel(R) 5 Series/3400 Series Chipset Family USB Enhanced Host Controller - 3B34. Device is working properly.
Intel(R) 5 Series/3400 Series Chipset Family USB Enhanced Host Controller - 3B3C. Device is working properly.
No FireWire (IEEE 1394) Host Controller found.
Most Recent Devices Not Currently Connected:
iPod (5th generation) running firmware version 1.3
Serial Number: 8L643QK9V9R
iPhone 4 (CDMA) running firmware version 5.1.1
Serial Number: C8RG57F0DDP8
**** Device Sync Tests ****
No iPod, iPhone, or iPad found.

I did all that HT1925 recommended and it was no help. My computer still won't recognize my iPhone. Often trying to start Apple Mobile Device Service fails with an error message that it starts and then stops immediately.

Hindi Numerals and Hejri calender in swing components

Hi
Are Hindi numerals and Hejri calender supported in JDK 1.4 swing components or not?
Please I need this as soon as possible.
Thanks in advance
Marwa Aboulfadl

hello!
I am developing an arabic editor but i am unable to display the arbic numeric in swing text .Plz help me on this topic and send some code example on this topic.
I have another problem about events i.e how can i handle the beckspace event, enter event, and spaceevent?
plz send me mail .
Thanx for advance.

Swing components and Mac OS/9

Hi all,
I 've developped an app using swing components (Simple app using a hsqlbd database) and i read that it was kind of possible to port it on a mac os/9.
I had a look on the net, on the apple site, without any luck as how to "add" swing library on the mac os/9.
If someone could point me to the right direction (Web site, book etc), I 've been looking for a while without finding any clear and precise info on how to tackle this kind of problem.
Thanks in advance.

As per my knowledge, u can use JJEdit editor on MAC OS X. By using this editor, you can run the applets. Here I am using JJEdit as a java editor on MAC OS X. just dowload the JJEdit. and run the applet on it.
regards
nr konjeti

When I am logged into iTunes and try to purchase something the window requesting I sign in to iTunes store keeps an appearing no matter how many times I enter the password (even though I'm already signed in!). Any suggestions greatly appreciated. Thanks.

When I am logged into iTunes and try to purchase something the window requesting I sign in to iTunes store keeps an appearing no matter how many times I enter the password (even though I'm already signed in!). Any suggestions greatly appreciated. Thanks.

This may help.
Fix for “No Content” on iPhone & iPod after iOS 4.2.1 update
The try the standar fixes:
- Reset. Nothing will be lost.
Reset iPod touch: Press and hold the On/Off Sleep/Wake button and the Home
button at the same time for at least ten seconds, until the Apple logo appears.
- Restore the iPod from backup via iTues
- Restore the iPod factoery defaults/new iPod.

After entering my itunes gift card code, a window pops up saying i need to sign in. after i sign in, it says it over and over again. how do i overcome this?

after entering my giftcard code, a window pops up saying i need to sign in. after signing in, it says i need to do it again. after signing in again, the same window pops up and i am unable to redeem my gift card. how do i get it to work?

Try:
- Reset the iOS device. Nothing will be lost
Reset iOS device: Hold down the On/Off button and the Home button at the same time for at
least ten seconds, until the Apple logo appears.
- Go to Settings>Store and sign out and sign back in again
- Reset all settings
Go to Settings > General > Reset and tap Reset All Settings.
All your preferences and settings are reset. Information (such as contacts and calendars) and media (such as songs and videos) aren’t affected.
- Restore from backup. See:
iOS: How to back up
- Restore to factory settings/new iOS device.

How can I learn "Drag and Drop" with Swing components?

Hello,
Im using swing components, so using paint() to draw a "drag icon" doesnt seem acceptable. Im basically trying to move a JPanel image to be dragged/dropped over another JPanel in the same program/applet.
I looked at Sun's Java Tutorial for information on doing drag and drop, but there was no trail completed yet.
Does anyone know of any good resources to learn? Or can at least give me a general idea of how to do drag and drop?

Did you see this?
http://java.sun.com/docs/books/tutorial/dnd/index.html
http://java.sun.com/docs/books/tutorial/reallybigindex.html

Swing components and the garbage collector

How much care does one need to take with swing components, with reference to running out of stack space? I ask because I'm writing a system for an automotive parts company, and the company tends to not reboot the machines very often...
Anyway... if a JFrame is closed, is it and all its components marked for GCing? Do I need to call the dispose method, or is this part of the default close behaviour? Or is there something else entirely?
Cheers

In class that calls for .setVisible(false) of one JFrame u MUST call
for dispose() method.
so
myFrame.setVisible(false)
myFrame.dispose()
myFrame = null // to help the garbage collector
If u have classes that becames from JFrame (or JDialog) u can
invoke in its constructors:
this.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE)
This makes uncecessary to call for dispose() method explicetly.
If u do not have this kind of classes u can invoke this method
after u have create your JFrame
JFrame myFrame = new JFrame();
myFrame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE)
The most important thing is REMOVE ALL LISETNERS that u have added, so, if u have classes that becames from JFrame u can ovverride
the dispose method to do that
eg
public void dispose()
super.dispose()
removeActionListener(.....)
and so on
If u do not have this kind of classes u must remove all listeners u have
added before u invoke the setVisible(false) method.
Regards

��� sign and Swing components in jdk1.4 and Windows XP

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�� sign and Swing components in jdk1.4 and Windows XP