I was playing around with a polymorphism today and I'm confused on how
I achieved my desired results.  I know I shouldn't question if it
works, but I'd like to know why it works.
Given two classes, a Traveler and an Agent.  Both inherit the abstract

i want to do multiuser chating program using java applet, and java applet
will be called in html, so is the connection method same if i java file
run as jframe but not applet class file called in html?

I'm writing language interoperability tools for scientific computing.  It
supports C, C++, Fortran, Python, and Java through the JNI.  Anyway, my
boss would like to add static uninitializers.  A static unitializer is the
opposite of a static initializer.  Insted of being a static ...

Do you know -server option of the standard compiler javac ?
It seem make file exe very fast, why ?

Can anybody help me with the following?
I'm using java.net.Socket to connect to a server. The socket is part of a
client application, and I connect to the server at startup. The application
should be able to handle a lost connection due to a restart of the server or

In my java application i need to launch several parallel threads to
execute elementary parts of a complex calculation.
So, the main application should wait for the end of all the threads
and evaluate a general result.

    I saw today some class definitions ending with semi-colon (C++ style)
public class CDummy
{
    public static void main(String args[])

Running on Win2k.  I have something like this:
AntThread.java
==============
Process p;

basically i need an example or some resources on developing a very low
level flat file database using java... i am working with very tight
space constraints and cannot use JDBC ...
I have been doing some searching but did not have much luck .. i did

excuse this naive question from a newbie, but i am wondering what the
differences are between 'java' and 'java script'.
i know that java script is a language thats embedded in the html of the
brouser and the clients machine then interprets that, so then is java a

Is it wise to start looking at 1.5 for large scale commercial
development, or should I wait? How long?
What is the best source on how to transform existing 1.4 java
source to 1.5 (my naiive approach of just switching compiler

Hello to everyone,
in the program below i define a class phone.It has 2 attributes company and
units.
Company is the telecomcompany and units is the phone units spent.

I was wondering how many other programmers have discovered an under
publicised feature of inner classes that makes them generically more
powerful than simple Delegates?
This is that using the "final" keyword for any parameters and variables

I know this question has prob. been asked a million times, but I couldn't
find it in the FAQ, so here goes :
I'm trying to write a Java applet to call a dll that resides on the web
server (running IIS 6). I've written a little test applet that should call a

Roughly I do something along the lines of:
 Set set = new HashSet();
 Set elem = new HashSet();
 set.add(elem);