I just downloaded and installed the J2SE SDK - do I need to install
the JRE to get applets to run in my web page?

I have a probably simple question, but lack Java experience myself.
I'm programming a multi-player card game applet, talking to
an Apache module. (http://preferans.de , is in Russian though).
My problem is: if I will call something like

My servlet has compute bound as well as memory bound operation to
perform. Hence, i am creating and starting a thread in my servlet
instead of servlet implementing Runnable. The implementation seams to
work without any problem but the tomcat's memory seams to grow

i  have a JSP page.
i want to check whether there is user exists in the session or not
String user=(String)session.getAttribute("user");
if(user==null)

Any idea using Math.random(), how long it takes to start to cycle? I'm
running upwards of ten million iterations at a crack, using Math.random() on
each itreration and am wondering if this is actually random enough for my
purposes. Thanks, Ike

I am getting this warning:
   Type safety: The method compareTo(Object) belongs to the raw type
Comparable.
   References to generic type Comparable<T> should be parameterized

AHHH...
I have extended Calendar and now it is complaining (depending on which
Java version I run) that
clash: compareTo(java.lang.Object) in MyCalendar and compareTo(T) in

I am reading in data from a database and based on the value in one
particular cell, will output the data in a certain format.  Looking for
some assistance on this.  What I'm conceptualizing, is an XML config
file with common values across all "types" and then some that are

I've designed a GUI in java and I want one of the text areas to be of
input bytes. Except JTextArea only inputs of type String and if I
convert the string to byte arrray I lose precious and my answer doesn't
make much sense in the end.

hi...
i've managed to far to pass a string to java from c..
but now i wanna pass a hebrew string, and as i hardcode it in c, i get
question marks on the java side.

I am investigating the use of a J2EE container ( JBoss, etc. ) for the sole
purpose of using MessageDriveBeans as JMS consumers.
Is it possible for multiple instances of a container ( one on each machine )
to be consuming from the same JMS queue ( persisted to the same

I've just installed the JS2E from the JDK 1.1.8. I have four or five applets
on my local web pages, made in 1.1.8, and they
are coming up white instead of the standard gray.
Also, a DemoButton example is coming up with exception

I'm looking for  ideas for screen layouts for data entry.
( app is coded in java)
are there any web sites /resources to get ideas for data entry layouts,
obviously  someone has been there done that , before me.

I need to intercept and act on all the usual typing keys you'd find on a
 terminal keyboard (i.e. keys in the ASCII range 0x01 - 0x7f). I've
extended KeyAdapter which does more or less what I want except that it
can't intercept TAB or (presumably) any of the other focus ...

Going crazy.
Trying to use the jnistubs code as found in the Solaris JNI book - it's been
modified for linux.
We can use it to run things like printf with several parameter variations,