In this scenario I am getting the next valid event in an infinite
while loop which sleeps a certain period of time looking for a change
in state e.g. expected file(s) in the file system that will appear at
some point and will continuously appear. Question is how would you

 i am using quartz job scheduling api for my project. when i run a
simple
hello world program against jdk 1.4.1_02-b06, its giving
java.lang.NoClassDefFoundError: javax/transaction/UserTransaction.

I can't believe I couldn't find this in a FAQ, but I want to keep a JFrame
from grabbing focus when it is created and made visible.  I tried using:
JFrame.setFocusable(false);
before the window was made visible, but it didn't have any effect.  In this

When exactly does it run? Is it a scheduled thing or when memory hits a
certain point? And what effect does manually calling System.gc() have on the
process?

[b]Hibernate version:3.2[/b]
[b]Name and version of the database you are using:Mysql 4[/b]
Hi, I got a Table I want to insert data into. It's primary key is an
auto increment id. Addionally, it has a unique key, that is based on two

There is a class A in package XX.ZZ.GG , and A has a static method
A.GetInstance(). There are 3 classes B, C, D in package XX.ZZ .
How can I make the A.GetInstance() only can be invoked by the B, C and
D.

I'm still relatively new to java.
I am trying to analyze and figure out on my own how a
proprietary frameworks 'works'.
It is event driven, and I tried putting a bunch of System.out.println

hello to every one.....
my question :   how can i get the name of incomming mail server and
out going mail server , which might be filled after
        "String from = " your ISP mail server here "

All im trying to do is set up a small app right now. Very simple jsp
page.
My problem is the project refuses to use the taglib files that in jars
in my build path!

hi.. do u ve any idea of tracing  client's MAC id through server???

I am new to java , wats the use of jar files.wats the relation
between .zip and .jar files

I have a  Date field named birthDate.  How would I add 19 years to his guys
birthday?
Thanx,
Bill

How to atributes define like constants in some class
be visible in other class?
i wrote..
public class Board

i have a jlist; i put in a vector of string
Vector v_righe = new Vector();
JList list_righe = new JList(v_righe);
i select an element of the jlist with the mouse

Hi there to everyone!
I have a simple program, client and server, to send messages to the
server and when the server receives it opens a window with the message
contents.