I am using
response.setHeader("Content-Disposition","attachment;filename=fileName.xls");
response.setContentType ("application/vnd.ms-excel");
in my JSP to get my output in excel, it is working fine but i cannot

Sun's developer online training website has an example of a JDBC
connection pool.
http://java.sun.com/developer/onlineTraining/Programming/JDCBook/conpool.html
One of the things it does is start a "reaper" thread that watches for

I would like to know is it possible to build the SWING based GUI by
reading the XML.
In web based application, i have built web pages(html, jsp) by reading
the XML. I have already done some analysis on NetBeans and Intelli

How do you determine the size of a multi-dimensional array? I have a
2Xn array and I want to determine what n is so I can load the array
into a hash table.

I just played with WebService in jdk6 and i dont understand why its like
rmi - I have to generate classes. why they were able to make ejb3 simple,
but this @WebService annotation needs all this generated classes. Maybe
because it uses rmi, why rmi is that way ? from what i know ...

Hi Folks..
I've been programming in Java with Swing for desktop apps.I'd like to
know how Groovy will help me enhance my GUI apps?
regards,

I am creating a singleton that shall be accessed by multiple threads,  
possibly simultaneously... here is my code
public class FooEngine implements FooInterface {
    private static final m_barElement;

This is my program:
-----------------------------------------------------------------------------
public class Palindrome
{

I'm looking for a book to learn Java.
So I would like to know what do you think about the book Java in a
nutshell ?
Thank you.

I have started using log4j recently. I have tried to put both INFO and
DEBUG on console and in a file but it throws an exception
log4j:ERROR Attempted to append to closed appender named [Console].
log4j:ERROR Attempted to append to closed appender named [RollingFile].

Just wondering, is there a speed or memory difference between the two
following codes? What is recommended? Which will easier garbage collect
(suppose MyClass is big)?
--- code ---

I am looking for downloadable documentation on the Java Language
Specification.  The most recent copy I can find is the third edition,
located at http://java.sun.com/docs/books/jls/index.html .  Is this the
most recent or is there a later version that I should be looking at?

i am in middle of a project where i need a JTextbox that can color what
ever code writtern in it depending on the programming language used by
the user.
is this thing available any where ?!!

This question may already be in a FAQ.  If it is, please accept my
apology for not noticing it, and please direct me to the location.
I am designing a class library for human language grammar
relationships.

which is most popular (,better) charting / graphics library apart from
jfreechart
it should provide
support for rendering graphs in web application