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Swing Application on Win 8 Platform

I have Swing Application which runs absolutely perfect on Windows XP but fails to give desired Look And Feel on Windows 8(Dimension of Frame and Dialog Changes).I googled a lot but no solution. Will I have to make some changes to my app before deploying on Win 8?

use layouts for your Jframe.
If you use IDE for design means the look and feel will change in another system.
so use layout for your design.
check this link click here
You can use this layout in Windows XP then try it Windows8.
This looks Will not change.

Understanding Java GUI development, managing and setting JComponents

I wanted to have a discussion on Java GUIs, right now, I'm still in school and I've done light gui development for class.(We briefly covered it.)
Plain and simple, I couldn't do anything I want, I wanted to build a nice clean layout but everything looked off and worse when you maximize it. JButton were huge when put inside a GridLayout, or they spanned the whole row, when I clearly specified the size of the button and etc. It's been one headache after another with Java gui development.
With Microsoft WPF/XAML UI development is more straightforward, it felt like HTML/CSS. Setting the width, height, margin, and padding is great, knowing where my components are going to be puts the mind at ease. And you can even design a custom Look and Feel.
I wanted to know if do you guys have any tips and resources for someone starting Java GUI development. And the one thing I don't get is launch new items with a JFrame, i.e a game.
At Launch your directed to a panel with 4 buttons.
Play Game - Takes you to a new panel to play the game.
Lobby - Takes you to a chat like interface
and etc
Should these be panels? Or more JFrames, like when a user click a button I launch the Play Game JFrame then close the menu JFrame. I really have no ideas with Java guis.

Make sure you understand and are using the appropriate layout managers. This Swing tutorial is very useful for learning how each works: http://download.oracle.com/javase/tutorial/uiswing/layout/visual.html
Also realize that you can layer layouts by putting on panel inside another. This is sometimes necessary to achieve a desired effect while keeping things simple.
For your last question, buttons can just be added to a panel that can bee adding to additional panels before a frame.

First off take a look at Mig Layout. This is a real full featured layout manager and currently is the best one available. If for some reason you can't use external dependencies then you will want to look at GridBagLayout. GridBagLayout will be powerful enough to do everything you need, but it is not as easy to use as something like Mig Layout.
In 99% of the applications you will build you will have a single JFrame and just transition the JPanels to show the different screens.

First off, one of my rules of thumb when building UI panels is to never set directly any location or size.
Then, a second rule is to never set any preferred, minimum or maximum size directly in pixels (thus will bite you when you change from one monitor to another one, with higher or lower DPI resolution). Take a look at this post on my blog, quite old but still useful today.
Thirdly, I try to avoid embedding panels into panels because it leads to components alignment problems and inconsistent component sizes.
Finally, I try to use DesignGridLayout for most of my forms, and sometimes revert to GridBagLayout if the UI layout is too complex (but a complex UI layout may also be a sign of poor UI design).
As a general comment about how to build UI applications (with any UI toolkit in general, but with Swing in particular), there are several recommendations that exist out there, but it is hard to find concrete implementations, you have to read a lot about these, and then try to find the way that works best for you.

Yes, welcome. Compared to HTML /Javascript/CSS you can get nothing like the sophistication and polish for the equivalent level of time spent learning.
(I haven't sourced all the files for you for anything here - google and start looking up).
Swing, in my experience definitely feels like I read 10 million documents, played with some demos, and spend three or four months nightly for 2-3 hours, and you have some idea of how some of the api's work, and then have no idea why some don't. Its great. You want something to work and then implement that, and proceed to f*ck up the rest of your gui.
Java swing, in my opinion, is desperately crying for an open source JQuery type plugin library that will animate your JComponents and render them in a way that you like. Its a definite second class citizen on the desktop, and especially now that CSS / HTML browser rendering sophistication has improved over the last few years.
The nimbus look and feel style is an improvement definitely in the right direction.
You could also move over to JavaFx. Good luck. Apparently its quite nice. I haven't yet had the time or patience.
If you are allowed to use thirdparty library : try JAXX as an option. The idea was to create a css type implementation, where styling elements are separated into a file that can be quickly configured and tested.
Read here for good introduction: today.java.net/pub/a/today/2006/03/30/introducing-jaxx.html
JavaCSS is found in the JAXX project. JAXX is a xml format style implementation of the swing gui interface. You write an xml document, and a css style document, and are able to bind the inputs and outputs of the GUI to your java implementation engine. The css style document allows for rapid sophisticated gui development. Using the jaxx jar engine, the xml code is converted into java code that runs as rapidly as if deployed in a .java class file.
The project has been continued by a French group of programmers and is now to be found here: http://www.nuiton.org/projects/jaxx/files
The demo is at least pretty and most things seem to work.
The latest release is JAXX 2.4.2. The latest update was May or June 2011. Whilst in French, the documentation is still comprehensible in English. Just translate.
The original ethan nicholas files of jaxx were last updated on 17-07-2009
http://sourceforge.net/projects/jaxx/
Please note: www.jaxxframework.org/wiki/Main_Page is a dead link, the site is discontinued. instead a mirror has been made and can be found at: buix.labs.libre-entreprise.org/original-jaxx/www.jaxxframework.org/wiki/Main_Page.html
This documentation is essential to understand the meaning and purpose of jaxx and its use.
If you are patient, have lots of time, and are interested, also look at the timing framework by Chet Haase, to animate your components, it is possible to create sophisticated effects. It requires learning curve and time.
Or pay to get your gui components handled by a professional third party library? (Um, the obvious answer, no-one who has spent the time and effort to learn to create a pretty gui is just gonna hand that over).
So spend three years learning and then ask for moola from others?
Another idea - I am very into exploring but it looks like it might be a nightmare to implement, despite everyone saying its so easy, get an open source webbrowser html / csss renderer embedded, and design your gui on that, using CSS / JQuery / HTML.
But it looks like you have to first compile the web browser (mozilla) from source, and then wrap that in another program (e.g. JRex) and then put the whole thing in a mini- client server like Jetty, just to have a front end implementation that you halfway like.
And that is only if the browser is actually is as compliant with the CSS2 standard and HTML4. Forget about HTML5. That is for the future.
Okay, I am grumpy today, but I don't think the gripes are completely unjustified.

NetBeans JFrame GUI all JLabels are grayed out when running

I'm having a problem with the GUI of a java project. I construct the GUI using the Netbeans GUI-builder. In the construction field, more specifically, Netbeans all the JLabels appear deep black but when I run the file (shift-F6) all the JLabels appear grayed out.
Here are some screens to clarify the problem:
In Netbeans: http://i51.tinypic.com/zl3z1j.jpg
While running: http://i56.tinypic.com/fnfwc0.jpg
What could be the cause of this problem?

This may be a look-and-feel problem. I seem to recall that the Netbeans GUI builder uses your system native look-and-feel. By default, however, your application will probably use the Swing LAF (the name of which I forget just now). This means that when you run the application, you won't see the same LAF as you see in the GUI builder. The colors used by the two LAFs are slightly different.
See this Java help page for some options on setting the look and feel. However, since it looks like you're going for a custom look anyway, you might be better off setting all of your colors explicitly.

Make the java systray look prettier in Linux

I'm making a Java Application on Linux that uses sytray using Java 6 and Swing. The app looks great (uses the system look and feel) but the systray looks awful. I mean the systray menu looks like old widgedts (Motif?). I wonder if there is a way to set a look and feel or something to make the system tray prettier.
Heres a screenshot of the tray:

Have you tried JXTrayIcon?
I tested this demo from SwingHelper on Ubuntu 10.10 with Compiz and it looks cool.
UPDATE
As 2020, these links are broken and this solution has many drawbacks today. For instance, GNOME3 desktop environments had removed entirely system tray icons and they replaced it with AppIndicator.
Java's (AWT/Swing) System Tray support is broken today. I recommend using this Java library: https://github.com/dorkbox/SystemTray
From the site:
Professional, cross-platform SystemTray support for Swing/AWT, GtkStatusIcon, and AppIndicator on Java 6+. This library provides OS Native menus and Swing/AWT menus, depending on the OS and Desktop Environment and if AutoDetect (the default) is enabled.
For reference, you can found a copy of the original example at here

Swing uses emulated UI widgets. It has a number of styles or themes you can apply. If you would prefer more native results you will need to look for another widget toolkit. You have a few options:
If your needs are very basic, you may be happy with AWT that is the original Java UI toolkit. It uses native widgets, but has very limited library of widgets that it supports.
If you want to go beyond AWT, consider SWT, which is maintained at eclipse.org. It gives you a rich library of widgets, that are implemented natively.

Because Swing use AWT on Systray, if you want great looking on systray. Maybe you can try with SWT :)

I wrote my own library for it. Here is the link:
http://www.2shared.com/file/sQdjb6aG/jtray.html
Usage:
import javax.swing.jtray.*;
JTrayIcon.initSystemTray();
JTrayIcon icon = new JTrayIcon(img, "Tooltip", jpopupmenu);
icon.displayMessage(null, "Title", "Multiline\nsecondline", 3000); // 3 seconds
The library uses a few dirty tricks, so maybe it may not work on any Linux platform as good as in Ubuntu. It should work for Windows and OSX as well.

I haven't tried it myself, but if you're using Java 6 Update 10 or later, can you use the new Nimbus look and feel?:
Using Nimbus LAF
I've heard of tray icons using "JPopupMenu" on Ubuntu, which uses the Nimbus look and feel, so this may be your best bet:
Using JPopupMenu in TrayIcon
From what I've seen, using JPopupMenu alone would be a big improvement - coupled with Nimbus it should be awesome.

A quick & dirty workaround:
Create an undecorated JDialog, add a JPopupMenu for it and make it visible from your mouse listener of your TrayIcon as you want.

Design a GUI for a J2ME app

How do I create a J2ME app for cellphones with a GUI similar to the menus you see in Java games? I've tried MIDlets with Netbeans but they only show you one GUI element at a time. (textbox, choice, login, etc)
And which Java IDE would you typically design these GUIs in? Netbeans or Eclipse? and is IntelliJ IDEA usable for this aswell?
Do I have to write/get a library that draws GUI controls to screen via bitmap functions .. and keeps track of the keys pressed for focus?

Try to use LWUIT - nice UI toolkit for j2me:
https://lwuit.dev.java.net/
http://lwuit.blogspot.com/

You can also use minime: http://code.google.com/p/minime/
It's an open source GUI library for j2me. miniME works on canvas level (lowest level in j2me) to draw every control so your UI will look exactly the same whatever the handset it'll be running on. Other advantage are:
- miniME uses its own event loop to manage user controlled event (botton pressed, softbar, ..), so you Application will "behave" the same whatever the handset.
- miniME support the concept of Views and stack of view, in order to make navigation between different view/screens very easy.
Here is an example: A View is what you have on the screen at a given moment (for example the main menu screen), then to go to a sub menu, you create a new view, and by calling a simple API, you push it in the stack of Views. The previous view (the main menu) is still existing, but inactive. When the sub menu view complete his work (for example, user press back, or do a selection), you can just go back to the previous view by calling a pop api.

Your question is a bit vague to give a specific aswer, but you might want to check out LWUIT or Polish, you can develop both with either Eclipse or Netbeans.
As far as designing GUIs go, neither IDE will help from a visual perspective. J2ME UI development is all done in code, beyond creating any initial graphics in a proper graphics editor you don't get to see your output until you test.
Read up on the LCDUI package documentation which explains how the UI classes work and the differences between the 'High-level' and 'low-level' APIs.

I can't comment on which IDE to use - but I do know that to create custom UI (like the ones you see in J2ME games), you have to explicitly draw the GUI controls.
Beware that you may need to customize the GUI depending on the target phones. You have to cater for different screen sizes, key pad configurations, default theme etc. This would probably mean that you need different builds for things like different screen sizes which would drive up your Java Verified certification costs (if you need it).
You may be able to find a set of nice looking UI controls that you can buy online and use (try J2ME Polish). The easy way out of course, is to use default J2ME controls :)

Links to many j2me GUI libraries: link1, link2
I know that kuix is not bad and free - watch demo.
But i prefer to make my own gui elements - this is much more flexible (but takes some time).
As for IDE - you may want to make some kind of gui-editor tool, construct interface in it, save result to some file, and read it from your app.

It's way too cumbersome to write your own GUI, especially since there are so many available these days. If you're familiar with desktop development in VB.Net and C#, you might find "J2ME GUI" easy to use. You can download it from http://www.garcer.com/. It has a similar feel and makes it easy to learn. This is the kind of GUI that I expected to come standard with MIDP2 when I started mobile development. Would have solved a lot of issues.

If you are familiar with web stuffs then you can use KUIX (kalmeo.org/home/index) framework having xml and css supports. In place of It you can use also Polish framework (www.j2mepolish.org) it's also uses the xml in easy way rather than kalmeo kuix framework.