I've seen this problem posted a lot and have recently ran into it.
Trying the various suggestions hasn't worked...
I have an ArrayList which gets put into the Session object by one of
my classes via session.setAttribute. The ArrayList is populated with

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Just asking for some opinions on what software is good for generating
UML. I've used Together (horrid). Haven't used Rational Rose. Briefly
tried Visio. Anything else? Which is best?
In other words, which is the Eclipse of UML software.

Are there any visual programming IDEs for JAVA?

I'm currently trying to resolve some problems I am having with a grading
 program I am using to grade submisions for a Java class. The students
are writing a compiler that I then use to compile specific test cases
and then execute them in a custom virtual machine. However, not ...

I am making some calculations on doubles, but to display the result I want to
display it with 2 decimal points, for example if  the result is 2.66666666 I
want to show it as 2.27.
Any idea how to do it?

I want to do the following comparison:
switch (string-object)
   case "John":
           do something;

I just had a problem and came to a very interesting solution. At first i
didn't believe that it would work - I just followed my intuitions - and
was very surprised as it worked...
Any comments are very welcome! ;-)

I really shouldn't be having these problems, but I so rarely Jar anything
up...
App works fine accessing other 3rd party jars.
When I jar my app up, it throws NoClassDefFoundError for the 1st class it

   First, thanks for taking the time to read this. I have been
working on some code using AWT. This is my first experience, and so
far so good. However, I have a slight problem, not with the code, but
with my computer. I have tested the code on multiple computers and it

I have just switch from Java 1.4.2 to Java 1.5.0 beta. I have notice
that using JFileChooser has been improved in the speed it generates the
list of files to show. But, I also notice that the fonts in the
showOpenDialog are different that the other fonts associated with the

so what IS the difference between an int and an Integer?
i just would like to know why the methods you can perform on them differ. is
there a simple reason? because if its too techy, forget it. :) youd be just
going over my head.

I have just switch from Java 1.4.2 to Java 1.5.0 beta. I have notice that
using JFileChooser has been improved in the speed it generates the list of
files to show. But, I also notice that the fonts in the showOpenDialog are
different that the other fonts associated with the ...

I am having problems using GregorianCalendar. I use this calendar to
store a key in HashMap . The key consist of year,month,day and hour of the
day. For some reason , the key Year = 2004, month=3, day = 4 and hour=2 is
same as