I have this problem with my JTree. I have implemented a JTree, with a root
node, where I add all my nodes on the first level. Since I have a bunch of
trees to show, I need to change my JTree, according to element that has
been selected in a JList. Now the problem is, that if I ...

I'm writing a JFace & SWT application. It has a worker thread who does
some periodic data checking. If it detects some changes on the data,
the UI should be refreshed.
But SWT's UI mechanism is not allowed to call 'refresh' method from

I have a JComboBox with 3 items. When the user chooses one of the items, I
would like that to fire a corresponding action, just like it would work in a
Menu. I tried simply adding an Action object directly
(JComboBox.addItem(action)) and it doesn't work. How do I do this? Thanks.

excuse my english, so I will be direct.
I've got a JScrollPane init with a JPanel --> new JScrollPane(myJPanel);
How can I repaint de JPanel when I move the scroll bar of the JScrollPane ?
Thanks in advance, JPh.

Can't find what I want in the API, I know it exists.
What is the class/method for linking e.g. a JButton with a JTextField for
accessibility purposes.
TIA

I have a JTable with a custom TableModel which I want to allow the user to
be able to right-click row, select Edit, and have a set column (i.e. only
column 2 will become editable, set within the program) for that selected row
become editable.

Hi, I have a simple application with a pretty plain dialog on the screen
(using jdk 1.4.2 on Win XP SP1). The app starts & displays the dialog
quickly, but after about 5(?) seconds there is a flicker as the dialog
gets repainted. It's more noticeable the more complex the dialog ...

I've been trying to implement a simple table cell editor but nothing
seems to work well. I started using the AbstractCellEditor route, but
found out that I'm restricted to the space inside the cell only. I want
something like the combo box that pops up directly underneath the ...

I have the following problem: my application needs to performs some
actions befor it is closed.
Ok, on window closing a dialog appear, but if the user press cancel i
would like to mantain the app

   I am having a JTextArea and i want to get my values to be written
in the textarea in a phased manner one line after another.I am using
append()method for appending text into textarea.I am using
System.out.println() and ta.append().The values are fetched from

Suppose I have a screen which is 1024x768, how can I map this rectangle in
pixels into physical world dimensions in meters or in inches? Actually I
want to know the physical size of the viewable area of the monitor...
Please help me...

I am using the Eclipse IDE.  When I run my program, the Japanese
characters disply fine, but when I run the applet inside Internet
Explorer 6, I just get garbage characters.  I have changed the
encoding to Japanese(JIS) and Japanese(EUC).  However, neither seem to

I need your help on this. I need to automatically obtain information about
the monitor both on Linux and Windows. So I chose to program in Java.
Basically, I need the physical dimension of the monitor and its gamma value
and all other valuable information about the monitor which is ...

If I have written a progarm in java(using awt components) which can
draw a picture, how to write code for saving that picture to a file?

I want to write a GUI application but I don't want to reinvent
the wheel.  Is there a place I can get a working program that
doesn't do much, but that has all/most of the standard hooks
like the common menu options with working submenus and working