For maximum separation of environment we want to run multiple java
instances (each running a webserver). now at peak moments I want these
to use the maximum heap, however, if the peak moments are passed, it
should free up the heap it doesn't use. Is this possible? Is it even

the arrow is  just like "------->"
and it has two kinds: the dotted line and the straight line
what are these two kinds mean in UML
thanks you

I'm trying to multicast using the demo in the java tutorial and a linux
router, but while the regular datagram work, the multicast doesn't!
Why is thing happening? I've tried with coyote linux, freesco and bsdrouter,
but seems like they don't route the packets?

and searching through the results, is there any one place where it is
possible to look up the library required to satisfy an import.
Example,
A program wants to import javax.jnlp but the package is part of another

I sometimes make fun of a buddy of mine for overdoing it with Design
Patterns, reading every pattern book he can find and then trying to put
all the patterns into his code.  I think sometimes patterns are used
for the sake of using them, at which point it makes the code more

i have no idea how to do this sir and i apologise for wriring in short
form..
can you help me out in this
...

hi all i m nw 2 java and i need dis urgenntly as it is part of my proj
...
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I want to write a web application that can access a mysql database on
localhost.  I want to have a web page display 3 lines with radio
buttons to select which line, and each line has either one or two text
entry fields.  Then I want to build a query based on the criteria

Hi Friends,
Don't missout on these articles on design techniques:
Thread Synchronization:
http://javalive.com/modules/articles/article.php?id=25

I'd like to decompress .tar.gz files and get at the individual files
within. It appears that the java.util.zip package handles that nicely
for regular .zip files, and it will do GZip files, but getting the
tarred files within the .gz isn't within its capabilities. Or am I

We are performing Data migration from Oracle to LDAP (Sun One) where we
are migrating around 400,000 users. But we would want a efficient
mechanism to compare - one-on-one- records from LDAP with that of the
DB. Is there any good mechanism that someone can suggest.

I have a vector of String[] objects, each with a key and a value.  This
is contained in an Options class which an application uses to store
keys for different windows which it contains.  I would like to be able
to display the vector in a JTable for quick editing and display.  I

I have a java web service that returns byte arrays to the client.
First a byte array is returned and the server gets the acknowledgement,
then the next byte array is sent and so on. But I don't have much idea
how to implement it. How can I resume from where I stopped at the

For swing app using socket communicating with server, is it possible to
leave a cookie like in servelt app? if so ,how ?
--
Thanks

I just decided to write a message regarding the myth that the use of
the instanceof keyword is categorically bad.  Not all java programmers
have fallen prey to the myth, but after years on the newsgroups it has
almost gotten to the point where if it was discovered that you used