I wrote a Java program that uses Eclipse's SWT gui-library. The program runs
fine on Windows after I put the SWT-dll into the working directory of my
program. But I do not know how to make the program run on Linux (GTK).
The program compiles fine but I get the following exception ...

We are converting a project from MFC to java. In the MFC project we had a
way of checking the validity of the contents in a field (eg a text field).
If the contents of a field was invalid (eg -1 if only positive nulbers
allowed), the focus would be retained.

I want to see if anyone knows how to make a Choice menu to open by
triggering an event, eg, ActionEvent, MouseEvent...

Just been having a play with the javadoc wizard in JBuilder 6.  I'm very
confused.  It only seems to generate documents within packages - the
index.html file does not allow me to display any html files which are in the
root directory of the project (ie not in a package).  Surely, if ...

I have a JTabbedPane containing a JPanel containing a JScrollPane which
contains a JTextPane.
If I add the JScrollPane to the JPanel using BorderLayout (Center
position) it covers the entire JPanel.  When I load a new document into

In Metal L&F if I call
JTextField.setEditable(false), the
background color is set to gray.
In Windows L&F there is no change

I am building a GUI that uses CardLayout to show multiple listings of
data with embedded Textfields and such.  Each dataset gets a card. I
create an initial set
of cards using the java.awt.Container add method.  This GUI also has

I've got a JComboBox, and I want to change its background color. I use this code:
BasicComboBoxEditor editor = (BasicComboBoxEditor)myJComboBox.getEditor();
editor.getEditorComponent().setBackground(SystemColor.control);
This code works with versions 1.3.1 and 1.4.1, but with ...

I have a table cell renderer that ultimately boils down to a JLabel
and I would like to be able to set the background color of the tool
tip to somehthing other that bright yellow.  The only methods
available to me appear to be setToolTipText() and createToolTip.  I

I'm trying to add a JPanel to a JLayeredPane, but it unfortunately
never appears...
However when I add a JLabel to this layered pane, it works fine...
Could anyone tell me which properties shall I set to this JPanel, so

I have the following program I am working on and would like to know
how to make both windows look the same.  When I run the program from a
DOS screen (ie. />java NullClient) the main window has the look and
feel of a DOS window but the login window has the look and feel of

Hello, everybody!
I have installed NetBeans 3.5.1 on Windows ME and there seems to be a bug
with menus, since when I move the mouse pointer from a menu item to
another, only the previous menu item is hightlighted.

Hi; Is there any way to center text in the text field of a combo box, so is
it always going to be left justified?
I've checked the APIs but could find nothing helpful there.
TIA,

Hey java-gui-experts,
I have the following problem: I show my own JPanel with the help of
JOptionPane.showOptionDialog. In the JPanel there are three JTextFields.
One of them I want to give the focus after showing the JPanel. But I

Hi,
I'm using a program for running simulations with neural networks called
JavaNNS on MacOS X. The kernel is written in C, but the GUI is in Java. As
you have to repeat some actions over and over (including saving results),