I have following problem:
Let's assume there is a function
  f(Object obj){
  ...

Good day, this is the problem:
Then I'm editing cells and button pushed I need to stop editing. But I
don't know how to handle this event in JTable and CellEditor. JTable
lost focus then I try to edit cell.  Does anybody knows who gets the

Here is the code:
public class Test {
       public static void main() {
               System.out.println("Testing ....");

The u/i of my Java application has the following problem.
Inside a panel a mouse double click causes a popup of another window. In
that window there is a JList with some items. One of these items must be
selected based on a previous selection. However, if the mouse is positioned

I want to get Garbage collector ouput in Tomcat 5.x. Can someone
explain how to get this going?
I tried using "-verbose:gc" in CATALINA_OPTS. But it doesn't seem to
work. Any ideas??

"EJB is a specification for J2EE server, not a product"
is this true ?
where can i see the specs ?
can you please provide the link for it ?

      How i can test a method say X with JUnit which returns void.
This X method internally calls many other methods which are returnig
something.
Thanking You.

Hi every one,
    I have a basic regular expressions question.
It goes like this: How do I extract a sequence of
@-delimited characters from a text?

How to extract 123456789@@abcdefhghij from
@123456789@@abcdefghij@987654321@@stuvwxyz@
using regular expressions
Thanks

Hi java gurus,
I've fairly new to java but have had considerable experience in
developing web-based, database-driven applications.  Now, I'd like to
get into web-based, database-driven java application development using

I'm working on a Java project in which I'm wrangling with three
intertwined issues: bignum arithmetic, a need to optimize memory use/gc
behavior, and a need for speed. As such, I've got the following apparent
options, which each have caveats as well as good points:

I have a Java application that needs to connect to USB devices.  Does
anyone know of a USB library for Java ?  It needs to support all platforms.
Thanks.

I'm trying using this method but I'm experimenting some issues. I
explain:
  1.
     byte buffer[] = new byte[3]; //my 3-bytes-long buffer

Does anyone know where i can use Jakarta Commons FileUpload package for
uploading excel and pdf file?
using Jakarta Commons FileUpload package with my form
ENCTYPE="multipart/form-data", i am able to upload .txt and .zip.

I want to create LED (light emitting diodes) inside a panel, or
rectangulars that can be given any color at any time. What is the best
solution? java.awt.Canvas?
Juergen