I want to develop a voice chat application. How can I capture voice
over the microphone and send it over the internet to a another
computer that can hear it. If there are any books on the subject I'd
appreciate if you could tell me about them. I just want to know about

how can I find out what some ip represents on LAN (ex. router, switch,
server etc)?
thx....

I am writting a generic instance creator and for various reasons want
to always use the default ctor (the one that
obj.getClass().newInstance() uses) but just got to thinking what
happens if the there is no public default ctor (or no default at all)

I have an application where I need to read data from random posiitions
within file. In this case performance is VERY important. The problem I
am running into is that the RandomAccessFile class appears to have
serious performance issues. Based on a bit of experimentation, I

does anyone of you know where can I find the source code of the
servlet 2.4 specification? I downloaded some J2EE Bundles, but there
are only javadocs (beside the jar-files with the classes).
Thank you very much for your anserz

I'm new about developing Java applets and I need some help.
I'm developing a Web Application based on JSPs and Tomcat in Netbeans.
I've also developed a Java Applet which its package has some classes.
This Applet connects to a Sybase Database (JConnect) in order to query

I am trying to understand web services.
what i understood so far is that web service is nothing but like a
java program sitting and running on the client side to access
application from the server side. so if there are 10 clients each will

Please assume this little program:
class A{
      int m;
}

I just discovered the Vector class today and am having trouble
accessing the variable elementCount.  First I received a protected
package error so I adjusted for this by creating another class that
extends Vector..

I have a Tomcat based site, that receives about 4000 requests a day.
It is a low memory server with only 350MB of ram.  But I would think
that that even Tomcat should be able to handle that.  Anyway, I keep
getting out of memory errors and the JVM will normally quit after it

Hi I'm new to JAVA Programming and need help with my homework!
The assignment:  Design and implement a simple, well-documented JAVA
program that uses random numbers to simulate throwing a pair of dice
and recording the total score thrown.  That is, each roll will throw

In java 6.0, I have below code.
double x = 0.0;
double y = -10.0;
double z = x / y;

I have to implement an RMI instant messaging application in Java for a
class project.  I was given a stub to work with.
In the remote interface there is a method that like this that
registers the client with the server:

why log4j is faster than other logging mechanism?

i am developing one Banking Project,
i want some more security while handling the
credit & debit card number
if any one know solution means. plz can u help