Can anyone help me creating a Stateful statemachine? How can Stateful
statemachine maintain its state in terms of Web Application ?
Anybody please help me do this.
Thanks in advance

In ant build.xml file , is there a way  that I may  just give one java
file name, all its depends java files are also excluded from being
built ?
If possible, could you give an example to do it. ?

I have 3 JSliders and I want the option of locking their movement
together. I use
a checkbox labeled "Lock Sliders" to determine whether the sliders
should be locked or not.

I have been told that when creating an object as a local variable, it
is better to declare the object as null, and then instantiate it.
Example:
  MyClass object = null;

    We have a data base(Oracle XE) backed  web application(Apache
Tomcat JSP) through which we would like to generate reports containing
simple tables with page headers table headers footers, text etc. The
reports should be generated in an editable format such as xls, doc, csv

I am kind of rusty so what I have been doing is a simple program where
I try to put a label on an applet and a button that changes the text of
the label. I am using Sun Java Studio Creater but I am a tad confused
because I have not done a lot of Java in a while. Can someone give me

I am new to Java and am trying to figure out how to run a servlet
without the need for a user to click a submit button.  I have a web
service that converts a file to PDF and then a servlet that displays
the PDF file in the browser.  Here is the code I have in the JSP:

I'm reading a book called "Head First Java," and there is an exercise
in the book (p.  576) which asks if some code will compile, and there
appears to be some errors in the given answers, because my compiler
(Eclipse) doesn't agree with the book's answers (The answers assume a

Most Java programmers are familiar with what I have called the "service
provider" in Java (if there is a better, more widespread name - please
tell me). In the pattern we want to discover an implementation of an
interface at runtime without caring where the implementation comes

The Sun documentation says that shutdownNow() is only a "best-effort"
attempt to end all processing tasks.  Is it reasonable to assume that
the Java implementation will attempt to end the tasks with either
Thread.interrupt() (and code appropriately for that possibility) or

hai,
 i am storing byte[] object in DB as BLOB  through EntityBeans(CMP).
Here i am using session as Facade. my problem is how i get the result
from database. i want to write that data as a XML file.

i've seen a few posts to this problem but didn't find a solution.
i want to open a document. it works fine if the path ist 8.3 format
compatible.
however, the example below does not work.

Hi All, I have created the following class to uniformly generate
numbers according to a zipf distribution. How can I extend this program
so that I can generate two data points with the requirement that the
first data point is correlated with the first? ie. the secondpoint will

Ok, I start here a new post, because I ran into some more complex
problems :(.
I got an XML schema, binded via xjc.sh:
<?xml version="1.0" encoding="utf-8" ?>

Windows->Preferences->Java->Installed JREs that point to Java 5
directory, but some Java 5 syntax such as for-each loop (e.g. for
(String extension : extensions) ) still shows red marks with syntax
error. I checked Windows->Preferences->Java->Compiler->Compliance and