I'm completely new to java and I need help with one prt of an
assignment for a ajva class I'm taking.
I've created a very generic class, and it has a method called toString
that describes that object based on its attributes and returns that

How to do this?
I have available org.jscience.mathematics.numbers.Rational
given the rational numbers:
increment

I am trying to use AES encryption with a 256 bit key but using the following
code I keep getting this error message
Error Illegal key size or default parameters
from the line

How to create a website with script other than English.
An example site is:
http://www.bbc.co.uk/hindi/
Generally which technologies are used for that?

Hi i want to send a file to php (with post) and i also want to set a
variable in the same form. example ("&myvar=" + myvar).
I have gotten the first piece to work but i dont know how to set the
variable under the same session, any help would be appriciated!

I hav just wrote a JSP (process.jsp) using a bean (pbean.java).when i
am runing it gets error
Please help me.should i hav to give any entry in web.xml?
HTTP Status 500 -

Hi Friends,
Don't missout on these articles on design techniques:
The Singleton Design Pattern:
http://javalive.com/modules/articles/article.php?id=24

hi im trying to create a media player using awt swing jframes etc etc i
just want one jbutton to play and one to stop the attached avi file, is
this possible to do or is it a total different ball game i merely only
want to play and stop the movie file

I'm getting the dreaded "class not found"  error.   I've Googled this
error and found that it's quite common, but not in exactly the way I
get it.    My applets run fine on my machine, both when tested locally
via a local HTML file, and also when going to website, but gives the

How can I get a describe statement to Oracle work from Java?
The following gives an invalid sql Exception.
           Connection conn;
           ResultSet rs;

I have a whiteboard application in which the buttons are not being displayed
properly. The image icons for the buttons can not be seen though the
whiteboard application works fine otherwise. Can anyone suggest why this
could be taking place ? I have used JDK 1.3 to compile the ...

Hi Friends,
Don't missout on these articles on design techniques:
Assertions in Java:
http://javalive.com/modules/articles/article.php?id=21

I have one problem.
I need to create UML diagram (class diagram e interaction o sequence
diagram) from source code.
It's possible to generate UML diagram from source code?

I am trying to do a program with functionalities of  a simple
calculator...The program I have done is given below.After compilation
when I execute the file ,and click on to the button ,nothing
works.Please give me a tip to correct my program.

Hi guy's ,
Ive got a problems to read a .asx file in java.
I search a lot of the internet and nobody can tell me how to read this
kind of extention.