I have constructed several threads in my application (it is such that
some threads start other threads, etc.). Now I would like to have a
possibility to execute some actions just when all the threads finished
(i.e. go out from the run function). Is there any nice way to do it?

I'm trying to establish TLS over an existing socket, both the server
and client are running on the same machine with the same jre, but I
keep getting a "SSLHandshakeException: no cipher suites in common.", so
I was wondering how that's even possible.

Im trying to create a custom text box. What I have done is inherited
from the JTextField class, and attached key listeners. However,
obviously swing is calling my listeners then processing the JTextFields
ones. Without using the formatter etc... I want to block key events

Let's say, I only allow  ips in 128.X.X.X/16 and 160.X.0.0. blocks  to
access my webserver. How to restrict it..... what api and stratagy to
be used?
I  am thinking of putting InetAddres's to HashMap of 128.X.X.0

This is my first post..
Greets 2 all
..can someone plz give me an opinion on this one,
im working on my web site and iv found something like free and (COMMERCIAL

excuse me if i open another post on the same argument but now i've
cleared my problem,so i think a new discussion can be useful. Thanks
for precedent replies.
I've to use a transaction in my jsf application.

how do i convert an hash map into a  byte array(being able to restore
this later , without losing data)?
thanks a lot!
bye

QUESTION 1:
can we use JTA  API in a web container ?
say , i have  a servlet where i am doing transaction to 3 different DB
as a unit.

Following ocde is used to download file from unix server, when i try on
window server, the downloading is fine. However when i download from
unix server in binary mode. The file is empty. Is there anything i
should take note of when trying to download file from unix

I am new to java..I am trying to  connect to two different users in
oracle Database by using the JDBC program.  Please help me..
bye bye.

A question regarding Java Web Start
I understand that by putting the appropriate link in the file I can force
download of a specified JRE to run the application (if it isn't already
there).

To all the Java Specialist,
I am in a great dilema whether  i shall go with  (c,c++& Unix)   OR
should i go with java.
How do you see Java in the near future

I'm writing a simple servlet .. heres the code:
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;

I have a question about the use of listeners in MVC.
I setup my MVC so that
View has access to Model
Controller has access to View and Model

I am working on a program which contains a module that can perform Cartesian
product on number of sets.
The code I have developed so far is :
import java.lang.reflect.Array;