The ConcurrentModificationException is thrown when the Iterator detects
that there has been a modification to the source collection it is
iterating. In case of instance variables or local variables, we handle
the situation by using synchronized blocks. My question is what is the

Hi, I'm just starting to play around with java applets and I've run
into a problem, and wonder if anyone could help me. This is more a
problem with me than with java I think.
I am running an applet from the deital book on a linux webserver.

             we can get screen size by:
myMIDlet.form.getWidth()/2,(fy.f.getHeight())/2, g.TOP |  g.HCENTER);
this work on most phonse, but for Sony Ericsson P8XX P9XX, there has a
soft-keyboard on the bottom of screen ( wehn setCurrent ( Canvas) )

I have created an array of buttons, and a corresponding array of listeners,
like this:
//Make grid buttons
     for(int y = 0;y < Y_SIZE; y++){

I've tried to use setFullScreenMode(true) in my MIDlet, it runs well on my
K700i. To use setFullScreenMode, we must set the project to MIDP version
2.0.
The problem is, if I install my application into devices that support MIDP

i want to use a grid in my front end using java. in this grid i want to
fetch the information from the database. can i make such a grid using
jsp.
if yes, can anybody tell me how?

Darryl L Pierce   aka   The Village Idiot

I have this simple recursion problem that i need to solve. It starts
with the following string:
String element = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
I need to generate and print on screen all combinations of uppercase

Hello -
Well, I'm kind of new at Java, so go easy on me.  The example below shows
a Java 1.5 cast error.  I'm unsure how to approach it.
The method getData() is returning an Object.  (Is this a bad idea?)  It's

I am reading a .txt file, and trying to store each double number to an
array for further calculations.
I have problems adding the numbers to the array.
Here is what i am trying to do:

I'm having problem with the JList if it is filled with a couple of
thousand items. Some events will occure very slow. Eg. Enter, 'D' or
Escape are very slow, while Array Down or F1 works fine. The following
code shows the problem. Does anyone have a workaround?

The ConcurrentModificationException is thrown when the Iterator detects
that there has been a modification to the source collection it is
iterating. In case of instance variables or local variables, we handle
the situation by using synchronized blocks. My question is what is the

I have deployed a Java application (a game) that was coded using J2SE
1.4.
I find that for end users who are running the Java 1.5 JRE on Windows,
their text is all screwed up on the opening screen and all subsequent

I'm going to write database app with about 25 fileds for each record. DB
will have about 7.000 records in it. Will Java
handle this ? I mean speed etc. Is there any database Java engine for this ?

I'd like to get my hands on the following statistic: what percentage of
browsers support Java 1.4+?  Java2?  Surprisingly, my attempt on
google.com has yielded no results.
Best Regards,