(Second time posted - there was a problem see that thread ...)
For java (Eclipse 3.3 + Visual-Editor) I would like to create a menu,
that is good for touch screen.
Is there any free component for that ?

well first sorry for the english that you are about to read :-)
i'm actually trying to make OpenJPA as an OSGi bundle
first step:
make a big big jar containing all the packages the OpenJPA may need and

A dissertation and source code. Soon please! Thank you.

I use a TimerTask which is scheduled to run every minute at seconde 40
eg. 11:15:40 and next 11:16:40.
After a day the task is running appr. 4-5 secondes later. There are
about 10 different TimerTasks running.

Hi, we would like build a web app , jsp run in tomcat on linux server,
that allow the ftp file like a client application stand alone. a
Simple ws-ftp but in a web page, it's better to do advanced applet.
what do you think?

Hi
waitFor() method returns value 255 on HP Unix when I try to start
netscape through Runtime.getRuntime().exec("netscape") method.
I also tried to give the full path but same results.

Hello, I’ve a problem, please if somebody could help me I’ll really
appreciate it.
I have a dynamic matrix with radio buttons, only the number of rows could
change. The matrix is as follows, it has 4 static columns of radio buttons

Could some DSP or Java guru please help me ? I have a simple Java
application that records audio signals and does simple analysis on the
collected data. I am using PCM encoding, with sampling frequency 16000
Hz, 16 bits resolution, single or mono channel, little endian and

I discovered a strange twist in polymorphism that leaves me in the
dark. If you can figure out what the following output will be, then
please explain to me why.
public class OverloadTest {

I am writing a program that opens a huge flat file, process it and
write it to another file. Just in case that I get to any performance
issue, I am considering implement it in multi-threading fashion.
I remember from old days that I need to write a factory, distributer,

String format="\n"+year+"年"+month+"月\n"+day+"日"+hour+"时"+min+"分"  + "
"+task;
FileWriter writer = new FileWriter(taskFile, true);
writer.write(format);

OK.. Assuming that pass-by-reference means that the following code
would work:
public void swap(Human h) {
 h = new Human();

Sometimes I feel it is difficult to deal with complex requirements
with an object-oriented approach.Can any experienced Java programmer
give me any advice?

I wonder if someone is aware of some small article or F.A.Q. on java
collections that would briefly remind people on the purposes or some
design hints of each collection? I've just found myself scratching my
head trying to guess the difference between LinkedHashMap and

Can interaction among objects only be taken place via interfaces?