An interesting problem at here http://www.jroller.com/eu/entry/a_hash_set_puzzler.
I it's impossible to  'get bar instance from the original HashSet
collection without iterating trough all elements'.
Anynoe have a good solution for it?

I have a very strange javax,mail issue.  I wrote a java program which
sends very simple email to 3 different email user first   yahoo,
second gmail and third is my business email. I use our corporate email
server for this purpose and relaying is enabled.

Anybody of you knows if there is any application (free or not) to
manage the development of java applications for different evnironment?
To better explain:
suppose you develop a very simple application:

Hi, I am using JXTreeTable from SwingLab, for my Java Tree Table
component. However, there is a limitation from JXTreeTable - They do
not support sorting :(
Any one know any free Java Tree Table component, which support

frnds wen we connect with Oracle server from java,we use
getConnection(oracledriver,IPadress of
server,servername,username ,password);
forgive me if they r not in the same order.now my question is wat is

(top-posting corrected)
Gordon Beaton wrote:

I want to implement e-shopping system(as student project level) and
the architecture that must be used is SOA(service oriented
architectute). but I decided to do this by jsp servlet not web service
because I don't have enough time to learn web service, WSDL, BPEL and

I am constructing a class hierarchy where I would like to extend a
runtime determined base class.
Lets say I have an Interface, IPoint.
I implement two classes

We have one server (FTP). One drive of which stores scanned documents.
Users usually upload documents (.JPG files). Currently that drive is
of about 27 GB containing more that 1,50,000 files.
We have to keep data of 45 days only and have to remove other files

         quick question. Is java.exe the java virtual machine?
thanks

I have installed jdk6 on my linux system.i also have mozilla 7 browser
installed on my system.i m tryin to run appletviewer command but i get
the following error
appletviewer : command not found

I'm trying to clean up some comments in web pages.  I'm using regexes to do
a lot of the work, but I've run into a problem.  Toward the end of the
process, I'm trying to replace any remaining HTML tags with an empty
string, as in no spaces, nothing, just "".  If I replace the HTML ...

Hello....
plz i am trying to use the new JDK features concerning JDBC ==> I want
to use the JDBC 4 API....
But i have a very serious problem.... java.sql.Select | BaseQuery |

Would anyone mind recommending their favorite books for learning
Java?  I am an expert at C# and need a low level book to patch up my
Java foundation (like CLR Via C# by Jeffrey Richter).
Thanks,

I"m looking at 1.6 right now and am surprised we still don't have the
concept of typedef (as we do in C, C++). I use Generic's a lot and
often find that declaring an iterator for a Generic can take two lines
of code. In C++ we could take the big long string that includes the