i want to generate a number that is unique for a machine.
I decided to get hdd serial. But i have to find more than that.
which hardware numbers can i take? how?

I am running a WebApp (JSP/Servlet/Struts) on Tomcat 4.0.6
I am having a ServletContextListener which spawns a thread which runs
indifinetly.
Is there a way I can make this thread (the source code of which comes

I have a look for framework like Prado (event-driven programming) for
Java.  Do you know something?
Thanx!

I'm experiencing a problem with beans and tomcat...I have an "Bean
cannot be resolved to a type" error that I don't understand!
Any idea?
Thanks in advance!

I'm trying Tomcat for the first time .
I've installed Tomcat (apache-tomcat-6.0.13, zip-version). It runs ok.
Then I've installed MySQL and there I've created my database.
Then I've writed a java servlet for querying the data.

I am working on a project which will execute a script from Applet on
remote host. The applet is displayed in Web interface.
Can any one guide me on the same?
Can we do rsh to remote host from applet?

I have a question about the need of a repainting thread.
I have an application with a timer, that is being fired each
millisecond:
Timer timer;

     I need to develop a system which provides users with ability to
define attributes of objects and read, query and save  objects into a
database. The point is that it is the user who  defines attributes of
an object, not the programmer. I cannot use Hibernate to accomplish

I have a date in the form of a string "5/31/2007 4:30:03 PM"
And I convert this string to date and save it. This is what I do:
SimpleDateFormat sdf=new SimpleDateFormat("MM/dd/yyyy kk:mm:ss");
dtStamp=sdf.parse("5/31/2007 4:30:03 PM");

I'm trying to get to an xml document root node (named dataroot), I've
tried different things, like :
Node node = doc.getFirstChild();
Node node = doc.getDocumentElement();

How can I parse the output of another program running using
System.exec()?
alternativly how can i cummincate with the os with java as if i were
using a command prompt?

Does anyone know why one can't override the following method
public List<Foo> getFooList()
with something like this
public List<Bar> getFooList()

I've been having a little trouble working with the Java midi
synthesizer included with the API.
I found a peice of code on a forum something like what follows:
import java.util.*;

Given:
1. class Super {
2. public float getNum() { return 3.0f; }
3. }

In which case, a desktop java application working with a sun jre1.4
could not work with a sun jre 5 ?
I thought Sun guaranteed that compatibility (adds deprecated method
but not remove anything..)