Hello everyone, im trying to write an internet cafe program that locks
machines when they are not in use. My program is going to work by
displaying an image and blocking user input from both the mouse and the
key-board??

I need to modify an old applet with an awt.choice, i want get old value
before change it
1 i have implement an PropertyChangeListener
2 add Listener for choice component

yeah, I know java is pass-by-value, but there *must* be a way to do
something like this...
    private Node root = null;
    public void insert(Comparable o)

We are working on the linux platform Red Hat 9. Avtually my need is
working on plugins. Therfore i doenload the JRE from below site.
" http://java.com/en/download/help/linux_install.xml#14 "
I follwed each and every steps written on that script. I Instaled

I have just downloaded the netbeans 5.5 ide and the jdk-1_5_0-doc.zip
documentation for java and want to get it to work as searchable help
when you press shift + f1 but it says that there is no searchable
indices and to try adding it to the library manager or the platform

Just a question...
If an object B extends an object A, whenever B is constructed, A is
constructed... if A() calls a
function that is overloaded in B, it looks like the overloaded function

I am an AI student from Holland and I am looking for a free Bayesian
Network API which I can use for my master thesis project.
There are several on the internet but they're mostly not free and I
wondered if anyone of you have some (good?) experiences with

I am trying to use the method from the dom4j Library to insert new
element it to an existing xml but I keep getting an error. Is any one
familiar with the dom4j Library? I need help. I am new to Dom4j.
Inserting elements sometimes it's necessary to insert an element in a

I'm using sun.audio.AudioPlayer class to play midi file in the
representation of AudioStream
I found no built in function that can do a fade out.
I thought about modifying the stream and reduce the amplitude

So I have built some EJBs along with a Facade to access those.
But how do you access the facade from the JSF side of things? Do you create
a new managed bean? I am trying to create a drop down list from a bean that
access the database.

I'm looking at java.util.Observable code and I noticed that
setChanged() is synchronized, however i can't figure out why... anyone
can help me?
   protected synchronized void setChanged() {

I've begun work on updating a java 1.4 stand alone application to work
with Java 1.5. It has some major problems with new version of Java.
I've been trying to find a summary list of differences between the Java
versions for someone familiar with Java 1.4.

i had a pdf file which i want to be embedded into a JSF (jsp)File. how
can i do this.
thankx in advance

I have an arraylist defined and populated in a servlet. What I want to
do is pass the arraylist to a JSP and display the values in the
arraylist.
Now to accomplish this what I did was to take the request object and

I have a log4j SMTPAppender set up in my XML config file.
Everything seems valid yet I don't receive any email messages.
I had our exchange server admin perform a trace on the SMTP server and
it doesn't even seem like I am hitting the SMTP server at all.