I'm trying to use cd command in ant
here is the syntax
<exec executable="cd checkouts/${TODAY_UK}">
the error I'm getting is

Hi group,
i'm looking for a Java persistence framework that is able to cope with
changes of the class source, i.e. new/changed attributes and/or
methods. Say you have an exported (persistent) instance of a old class

Hey guys, thanks a lot for all of your advice: it's helped me quite a bit.
I'll probably get started by jumping right in, and at the same time, I'll
start picking away at some algebra and so on.
Another question if you will: what's the most efficient language to get

When I look at the "Runtime Heap Summary" in JProbe (which shows memory
usage) and compare it with graphs plotted in excel using GC output they
look completely different. Using the GC output I plotted the before and
after memory graphs and neither remotely resembles JProbe's.

what is difference between Class variables and Instance variables?

I am using JavaMail-Crypto together with BouncyCastle's S/MIME
implementation to send signed email messages from within a Java
application.
I use the following code to send a signed message:

I need to control a daemon application in the nix environment and would like
to do that using nix signals.
I have come across a posix package which handles signals but unfortunately
there is scant documentation for it.

I need to let a number of threaded objects change the state of a singular
object by use of setter methods.
What would be the better approach to synchronise based on a couple of
boolean variables.  Should I use a couple of synchronised method members or

Does domino.doc have a Java API for retrieving/storing documents. Can some
one point me to a URL
Thanks
Jon

Hello!  I have built a TCP socket listener that reads ASCII data
streams then inserts into a DB2 database.  I am currently running this
application via command line, but would like to implement a GUI
interface to start and stop the app.  I'm not quite sure where to

I am trying to decode the RLE 16 - bit compression using java.
So here I believe all the data is encoded in 16-bit. so even the face
number should be encoded in 16-bit. using java I am reading it as 2
eight bits A and B. Now I need to add these 2 bits in such a way that I

   I might ask this again later in the week, so don't get sore when I do..
   Can anyone recommend a good open source Java log viewer to work with Java
   1.4 logging? It would be great to get filters and socket listeners.
   If it works with Eclipse, awesome.

I've got windows with language set to English - US and French Keyboard.
When i launch a java application, the keyboard is set to English keyboard.
How to make the JVM to set the keyboard with the type of keyboard set on
windows (or french keyboard) or how to force the JVM to load ...

I have :
Type safety: Unchecked invocation sort(List, Comparator) of the generic
method sort(List<T>, Comparator<? super T>) of type Collections
for this statement:

Can someone point me to an efficient algorythm/method that will allow
me to efficiently extract subsets of a collection such that if I have a
collection of n objects, I need to extract all combinations of (n-1)
objects, (n-2) objects etc. So if I have a series of 5 numbers