Is there a global setting for all java components that increase the
scrolling speed when using mouse wheel? By default, it's scrolling very slow
and setting mousewheellistener for every scrollable component in the project
does not sound like an exciting idea.

Dear experts,
I have the a JDesktopPane and a JPanel added to the CENTER and SOUTH
position of a JFrame respectively.
I would like to dynamically resize the JPanel upon mouseExited like the

I have a 10x10 grid of buttons created using a GridLayout. Each button has a
30x30 pixel GIF icon on it.
Unfortunately, nomatter what I try, I can't seem to get each icon to sit
side by side (so that there's no gap between them). Currently there's an

I have created an overridden version of the JPanel.PaintComponent(Graphics
g) method in order to display a JPEG image. I'm fairly sure my new ImgPanel
class is OK, but I'm just not sure what Graphics object to pass into the
method? What exactly is Graphics g?

  I have a JMenu , I add three JMenuItem to that JMenu. Just above
the first JMenuitem and below the last JMenuitem, I see a thick gray
color area. Please tell me which class is that area? I want to
overload its paint() method.

can anyone tell me how to put a textbox(or combobox)  and a button in a
single column. (like those found in properties editor).
thanks.

I'm programming a text editor and use a JTextpane for it.
I added a DocumentListener to it, so that the functions insertUpdate() and
removeUpdate() are called everytime when someone inserts or removes text.
Now in the function removeUpdate() i somehow need to know which text was ...

How do I set the size of one "cell" in a GridLayout?

Does anyone know why I'm getting a "cannot resolve symbol method
showMessageDialog(java.lang.String)" error from this line here:
javax.swing.JOptionPane.showMessageDialog("Hello world.");
BTW It's just sitting in a normal class, not a frame.

Hey there,
I'm trying to make a JScrollPane/JTextPane for logging multi-colored
text with a fixed height for the buffer.
My current method has a wrapper around the documents insertString()

  Is it possible to start a CPU or I/O intensive task, like a SQL query
to a database, inside the getXXXCellRendererComponent method of a
CellRenderer ? Every example I've seen in the net are very simple, like
changing the background color of the cell, putting a little icon in ...

I'm trying to create a resizable window (displaying an image) that sits on
top of everything inside my JFrame.  Preferably with no title bar, just a
border.  It needs to be draggable and resizable by the user.
Any ideas?

Is there is built in state-indicator widget.
It would have 4 possible states and 4 possible associated gifs.
You just set the value and it displays the corresponding icon.
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I have a question on threading for the progressbar.
My program will call a few methods and those methods are really time
consuming, the time it takes all depends on how much information are
being pump in, sometimes it can be less than half a minute, sometimes

When you have a component that jitters in size, it is annoying because
it keeps adjusting the entire layout.
The behaviour I'd like is for it to settle on a size, and stick to
that, growing if necessary, but not shrinking below that size so that