Hi,
Is there anyway of forcing a panel to repaint straight away?  I have 2 panels.  When somethign happens on one pannel, I want the other pannel to display the changes.
thanks in advance

I need to display only a particular portion of a big gif image in a
fixed-size square component; the coordinates of the visible square to
display are to be determined at runtime. What image component should I
use? I am only familair with the Swing label's setIcon() method, but it ...

I have a custom editor and renderer for a JTable cell to display multiple components e.g textfield, combobox.
When tabbing , the focus moves from cell to cell but I would like to transfer focus to the first component in this particular cell.
I tried to use requestFocus() but the ...

JTable horizontal scrollbar problem
I have one JFrame with gridbaglayout.
And i have jtable with in scrollpane. this scrollpane added in the
JPanel.

Im a beginner with Java. In few words, I need to build a GUI with 2D
graphics. The user must create one or more rectangules just inserting 4
points for each figure. Aften then, info about these figures should be
written in a XML file. Can someone suggest me something useful to do ...

I have two SwingWorkers updating a JTextArea simultaneously via the append()
method. What do I need to do to make this operation safe?
Thanks!

I am trying to put together a panel which needs to consist of 20 lines,
each containing :
JLabel - 2 columns
JTextField - 1 colomn

Hello, I have a problem that is making me mad.
I have an application with a menubar that lets me change the JPanel to
show.
This panels are using gridBagLayout to localize and resize their

Is there any easy way to make a JTextField semi-transparent (maybe 50%
alpha)?
I tried setting the background color to "new Color(255,255,255,70)", but
the JTextField's background pickedup all sorts of weird things, and became

I need to implement a JTable that will have different no of columns for each row.
Is it possible to implement such a Jtable?
Are there any possibilities for the same?
Your help is appreciated.

I am trying to put a JLayeredPane inside of a JScrollPane. I size the
JLayeredPane to be 800x800 and I size my window(JFrame) to be 300x300,
and I set the size on my JScrollPane(300x300), but there are no
scrollbars. I have also place many items on my JLayeredPane making

I have a JTable that I update very regularly from callbacks (messages
received from a server, with the "message reader" being
single-threaded).
so far I've been using:

Hi Friends,
I need some good JAVA interview Questions.
I am currently working on core java and more on SWINGS
inorder to get in touch with the happenings in the market i would like

One of the top five worst practices for GUI programming:
-Instantiating a component in an event listener.
It also belongs to the top five never-do-it practices for GUI programming.
BTW, is accessing client's System.out in an applet legal? I'm

I have a JFormattedTextField which accepts only numeric input.  The custom
mask formatter contains the "#" character for the format string.  Works
great, however, I would like to "control" the behaviour of the edit.  The
default implementation uses a "beep" if the data input is ...