Does java has vtable and vptr like C++? I try to understand the
mechanism java used for dynamic method lookup, but my books don't say.
Can someone explain? Thank you.

I have a non blocking server which accepts new connections as per the
acceptConnections() method below.
Connections are closed by calling channel.socket().close();
The server works fine, however after sometime we notice that the CPU

I got some question of a free test on the internet and I do not
understand it.
//-------------------
Is the following true or false: A mod (%) 16 is performed on the shift

I want create for each object that I create in my program an own thread
where this object is running in. But the object itself should not be
derived from the Thread class, e.g.
class bootstrap {

I'm writing a class that will connect to and download an ASCII file via
FTP. I currently do this manually, but am automating the process. I've
reached a sticking point, and have not been able to progress for
several days, and would very much appreciate any (and all) suggestions.

I need a regular expression that will match a word stem to that stem
PLUS all common suffixes.
'make' should match makes, meker, makings etc.
A slight twist is that I am using the Porter stemmer so some of the

Hi friends,
Give some ideas how to proceed. I need to setup an FTPClient, which
will be deployed in tomcat server. Whenever bytes comes through socket,
it should be written to a file and stored in ftp folder.

I'm reading a binary file, in which I know that at a certain
index I'll be reading integer numbers. Everything works
fine until a certain point where i encouter 0xE8, and I'm
returned -24 instead of 232.

since 1 month i work on a server, which check all 5 seconds for change
on some sensors. the server could register multiple modules (in form of
objects) for multiple sensors, so if one state of a sensor change, the
registered's moduls for this specific sensor will be invoke and ...

I heard from someone that there is already a java library for plotting
two arrays of data.  He made it seems as if it was part of the API.
But I doubt it and I am not really finding much on the subject so far.

Hi all, i hope this is the correct forum to post this.
i have a problem with eclipse ever since i installed the new webtoolkit
i'm working with version 3.2 with wtp.
the problem is i can't save resources or exit in an orderly fashion.

i need a little help.
I've developed a datatable and an actionListener as commandlink for
each row,when it's clicked an insert on a table is performed.
The problem is that when i insert value and click my table is filled

If the page hasn't fully loaded and someone presses a form button, I
get an Exception because the data hasn't yet been written completely to
the page before it is displayed.
I'm having this issue crop up on new browsers, such as Firefox.

I need to save my process ID from java to file. How can I do that in
java?
I am using java 1.5.0_07 on Linux 2.6.18

I want to encrypt and decrypt the password .
I have the code for encrytion but can anyone help me to get the code
for decrytion using the same API's.
I have used the following code for Encryption