I'm new to java and Swing, and I have some questions about doing a
particular animation.
I'm trying to animate a phase portrait, which is a representation of
the motion of an oscillator (think of a pendulum). One axis of the

I'm writing my own ListCellRenderer for a JList, and I seem to be
running into a problem.
The code below (in getListCellRendererComponent) is supposed to (or so
I am told) appropriately change the color of the selected item so it

Just wondering, has anyone here ever used java.swing.timer  if so, have you
got any examples? i cant seem to find many on google :s

I have an editable JComboBox. I want it to scroll to the default value
if the user double-clicks in the edit area. So, I tried using
'addMouseListener()' with a MouseAdapter to listen for the click
count. I'm hearing nothing, though. Can a JComboBox not respond to a

Just wondering, currently painting 6 shapes onto a jPanel, and ive got to
continue doing this, but on some of them, i need to display a icon. Any
ideas?

I need some help with animation.
Specifically, I am trying to create a class that will play an animated GIF
(GIF89a) in a JPanel and stop or start when the user clicks the mouse. This
seems like something that should be pretty straight forward but I've already

How does one specify the maximum number of characters that may be entered in
a TextField or JTextField?
Gregg

I add 500 JPanels to a JScrollPane which is equipped with a FlowLayout
Manager (i.e. this is some kind of thumb view with a vertical scrollbar
only). The scrollbar is adjusted accordingly to the extent of the
scrollpane.

I created a custom JComboBox.KeySelectionManager that allows
progressive key selection. For instance, when installed in a combo box
populated with U.S. states, a user can type 'ar' and the combo box
will select 'Arizona' instead of 'Rhode Island.'

Is it possible to put a component (ie. JComboBox) on the same line as
the tabs in a JTabbedPane?  If so how?
________

I have several JPanels.  One of them has a JToolbar in it.  I want to know
when the toolbar is moved from it's original panel to another panel?
I put a MouseMotionListen on the JToolBar and it does detect that it's
getting dragged, but when I release the mouse in the new JPanel, ...

I have a Jbutton with some dynamic text (that mean that i don't know how long will it), and i wish that in spite of being too long, there will not be some "..." appears. I want that the text be divided into several lines ....
See this ascii draw
I have ----------------
      |      ...

as the subject line appears, the JScrollPane doesn't appear when the
JPanel in its veiw port becomes bigger than the scroll pane.  Does
anyone see anything obviously wrong with this code?
JFrame myFrame1 = new JFrame();

Just wondering, ive got a big jLabel, and on that label ive set a .jpeg as a
Icon..
Ive then put jLabels over the top of this, aswell as a combo Box.
The thing is, when i run my program, all these labels ontop of the main

I want insert a JPG (or jpg?) image in a Label (the Label is a Component of
a Frame; I don't want to use swing for compatibility with browsers that
don't support it).
This is a part of my "class finestra extends Frame":