How can I change focus from one JComboBox to another JComboBox. Both
components are editable and I'm working on Java 1.3
requestFocus doesn't work on 1.3 (on 1.4 is fine). I read that there is a
lot of bugs for JComboBox in Java < 1.4 0 - maybe someone knows any

my JTable has a column containing a JCheckBox (with a renderer and an
editor associated). Until now, it works by checking/unchecking the
checkbox in any of the rows, but I don't know how to let a JDialog
appear once I click on a checkBox, without selecting the checkBox.

 From Java 1.5 or lower version, can an Action be used for JCheckBox &
JCheckBoxMenuItem pair or JToggleButton & JCheckBoxMenuItem pair?
Java 1.6 has Action.SELECTED_KEY but 1.5 doesnt have.
 Also how to execute an Action from program? like JButton has a

I'm bulding a stand-alone-java GUI application.
This application is expected to run both on Windows & Linux
The content of GUI window is self configration at run time with csv
file.

I was so very happy today, because I had my UI looking just really blody
flash. Then I tried moving a JInternalFrame, and the whole house of
cards tumbled down.
My whole L&F depends on having a JPanel in the background of an MDI

Suppose you want to use a font that's 12 pixels (not 12 points)
Arial.  How would you do it?  It seems like the answer has
something to do with FontRenderContext and AffineTransform
but does anybody have code that creates a font with a size in

    I'm writing an interface that has a verticle split pane, the top
and bottom of which both contain JScrollPanes with JEditor panes inside
each scrollpane.  It sits within a JTabbedPane which is in a
JInternalFrame on a JDesktopPane.

I'm a real noob with java. I worked for 4 years with php but now I have
to use java.
I'm looking for a clean way to get an action behind a button/menuitem. I
 already found the class actionListener. but the method actionpreformed

Hi everyone.  I am kind of new to Java in general, much less Swing, but
I am working on a project where I want to create somewhat of a flow
chart with draggable boxes and lines connecting them.  I plan on
representing each box in the "flow chart" with a JPanel.  Keeping in

In the GridBagLayout example that follows, all the panels nest nicely
within the frame with no spare space.
Now change the last three lines of the constructor
from

I tried
UIManager.put("MenuBar.gradient", MENUBAR_BG_GRADIENT);
where MENUBAR_BG_GRADIENT is a java.awt.GradientPaint object.
At runtime there is a ClassCastException:

I try to program a JTextPane that is to hold two different kinds of
lines. The first should be colored green and contain OK-messages; the
second should be colored red and contain error-messages. To achieve
this I have to operate on the text that is displayed in the JTextPane.

I'm testing my application using JDK 1.6 (to make sure it will also work
with that).
There is one thing that is not working properly: my icon that I set for
the main window (JFrame) is not displaying under Windows when using

So here is the scenario:
I am working on a collaborative application which as a whole requires JDK
1.3. However one part of this application viz. a whiteboard application only
runs with JDK 1.2 ! If I run the whiteboard application in a JDK 1.3

Hi Friends,
Don't missout on these articles on design techniques:
The Adapter Design Pattern:
http://javalive.com/modules/articles/article.php?id=20