I'm new to Java and exploring JAI.  I'm opening grayscale TIF images
with
RenderedImage image = JAI.create("fileload", filename);
, getting an editable raster with

I found this code-snippet in a book (Killer Game Programming in Java, O'Reilly) :
int i = ch - '0'; // We assume that ch is a digit ranging from 0 to 9.
How does this work, why/how does subtraction of
two char's result in an int ??

I invoked a java program with something like:
java -Xmx1600M myprogram
It ran for a day and now top reports this:
top - 17:14:09 up 1 day,  1:30,  5 users,  load average: 5.56, 5.98, 6.13

Esiste un algoritmo o una classe pronta che mi converta un numero in
lettere?
GRAZIE

Hey there!
I am currently doing my first steps with the Java Native Interface.
Everything is fine so far, but there is one thing I don't like: I have
to adjust the path to the java headers in the Makefile to the system I

im making an application with email client When i use it ona any computer
its work fine but i want to put this project into Java Web Start. When im
doing this and im trying send email i have that errror :(
Can somebody explain me why Java Web Start don't allow me to send emails?

I need to write a method in Java for
encrypt a String with DES.
the interface is:
public String encrypt(String nameofthestringtoencript);

Hi ...
I have written a Servlet, which starts in a popup-window and it just
reads a file (in my case a zip-file) into a byte - array and sends it
to a popup-window for downloading. The popup-window disappears and the

We have the following architecture:
explorer -> IIS -> Tomcat
We have isapi redirector running on IIS which puts
the userid into the HTTP request header as follows:

Hey all, well, I finally got a profiler to work and my code was simple
enough that what I thought it was doing, it actually was doing, so I'm
still at a loss as to why it's so slow. I'm still trying to learn the
profiler a bit better to use, cause it took about 4 hours before I

I am doing a project where I have to set up a client / server system on my
local PC. The client side is a registration and login form. I have the user
able to enter the setails into the registration form and then the client
checks whether the user name has not been taken by passing ...

Anybody know how these cool functions in Win32 for example with Eclipse
where you copy-paste a file based on an icon in a tree.
Some other things like the ability to copy a HTML document and having
the HTML code embedded(copy-paste)

    I'm looking at the source code for the 'java' command-line tool
    written in C.  Near the bottom of main(), it calls the static
    main() method of the main Java class via CallStaticVoidMethod().
    It then detaches the current thread and destroys the JVM via

   I'm using Jboss for a web app, and it seems to automatically create
cookies (named JSESSIONID) that internet explorer doesn't like...
the reason why IE doesn't like them seems to be because of the
expiration date: it is set to "at end of session".

  You know James gosling monthly salary? how much sun giving him?
thanks
from Peter (cmk128@hotmail.com)