As a part of a web app I am involved with I need to dynamically create
some large specialized graphs. These can be up to 6000 pixels wide and
2000 pixels deep. Using
BufferedImage image = new BufferedImage(6000, 2000,

This should be easy, but I can't find an example anywhere on the web.
In my Java program (not Javascript) I want to detect when a new file
is written to a directory, then read it in, and operate on it.  How
can I check a directory for "new files" when running?

I have installed apache 4.x on my machine. When i keep it running idle
for a couple of hours it begins to throw 404 error for all urls that I
could access before. Does anyone know why this is caused?
Satish

I am just starting out with JAVA and need to write a static method
that receives an interger N as argument and returns the sum of the
first N cubes: 1^3power + 2^3power + 3^3power + ... + N3
any help please....

 I have a problem whose solution I'm not sure of:
I have a set  of functions all of which return an object of some class
(say A). Furthermore I want each function to implement a few specific
methods (say, m1, m2). This way I can allow other people to easily add

Hi, I want to send some data over the com port to my microcontroller.
I installed the Java Communications API, and i tried to get the sample
code working. But it didnt work. For some reason it cant find my Com
port.

We run junit and codecoverage tests ( via ant) for our java code. Also
we are using clearcase to handle different versions.
When we have run the tests we need to generate a website that contains
which "track" or branch we have generated the test for. Then we run the

When being considered for a job position, do certifications carry much
weight?  I am studying for the SCJP certification, and then will move onto
the SCJD certification.  I have some professional programming experience in
Java (J2SE, not J2EE)..

I want to send emails with attachments (textfile).
But before sending it the textfile must be converted from
ansi to oem.
How to do that?

I have a applet within a JSP. On click of a button on the screen the
javascript calls a method in the applet. This method inside applet
accesses the PrinterJob function. But during runtime I get a
java.awt.print.PrinterJob class not found. Here is code..

I have this code block setup within my program (extracte to this test class)
I want to be able to disable the input JTextField and the JButton if no
JCheckboxes are selected,
though if one is selected i want to enable the input JTextField and start

       I use IE 6.0. Whenever I try to load applets, a gray box
appears saying "java.lang.classnotfound.****" The same page works fine
in my neighbour's system. Please try this link
http://members.lycos.co.uk/sai406/

When .java file is compiled, a .class file is produced, which can be
run by using the java command in the DOS Prompt.
I would like to know how it can be run directly from Windows(e.g. by
double clicking as in an .exe file).

I'm trying to synchronize my clock using Java, I read it's done by opening
port 123 on a time server! That logic is within probeServer method which is
called using an array of strings representing host names(I found the list on
the Internet). The method always throws various ...

I was messing about with the java.awt.Robot class for a while, moving the
mouse around and pressing some keys... and then I stumbled upon a little
problem.
How do I get the current (x,y) position of my mouse cursor? Easy enough - or