I need help with converting all lowercase letters in a string to
uppercase letters and viceversa. For example, Alb34ErT will be
converted to aLB34eRt.
I know to use something like:

I have this piece of code running in a Jboss/Tomcat 3.2.5 + jvm 1.4.2
envirorment:
  import net.sf.jasperreports.engine.JRImageMapRenderer;
  ....

Hello, I've got a question about the behaviour of Java:
I've got this code:
ArrayList<MyObject> objects = new ArrayList<MyObject>().
... (some code adding objects to array list)...

A company im about to work for wants to develop some inhouse tools, but
would prefer to keep them inhouse - i.e. not open source. (Im not
against open source at all - but i cant see why in this scenario). I
was going to advise on the use of Java, however now its gone GPL, what

I have changed the default file encoding of my application and made the
following:
System.setProperty("file.encoding", "UTF-8");
But it doesn't work. The Reader and Writer continue reading and writing

I need to add a next, previous, first and last button and can not
figure it out. Can some one help me out on this? Also is there some
place that may have something like templates for GUI programming?

whats the last version of the java runtime to run on windows 3x and
where can i find it ?
....last version of the runtime to run on windows 95 and where can i
find it ?

The program risk_analyser.java complies and runs fine using an IDE
called Eclipse because I can associate four .jar files to the project
build path. These are minerva.jar, colt.jar, foxtrot.jar and
phredist.jar.

I am wondeirng how to convert an ObjectInputStream to a byte array, then
convert the array back to ObjectInputStream -- should I convert the array
back to ObjectOutputStream other than ObjectInputStream?
Any sample codes?

I get the above error when i try to compile a java program. I have
included it in the CLASSPATH. The CLASSPATH looks like this:
C:\PROGRA~1\BORLAND\CBUILD~1\PROJECTS\BPL;C:\PROGRA~1\BORLAND\CBUILD~1\BIN;%SYSTEMROOT%\SYSTEM32;%SYSTEMROOT%;%SYSTEMROOT%\SYSTEM32\WBEM;C ...

Could anyone please explain if and how it is possible to select a
given number of row indices in a table. I know about
setRowSelectionInterval(), but this seems to only allow for continuous
intervals, where I would need the ability to select multiple seperated

I need to use a raw socket for some special communications.  Raw sockets
in Linux need root privileges.  Any tips for developing an app that needs
root access ?  I'm using Eclipse if that matters.
Should the app itself query the user for root login if the user isn't root

I'm trying to develop java applet, to read my "GSM SIM CARD" to
accomplish two goal.
A) Read the IMISDN (the serial number) of my SIM CARD, and pass it to
an authentication form, on my webserver. (this will be the most

I am having a problem with my program. I am trying to create a logon
usint the JOptionPane, however, it will not correctly compare my
inputs.
Any ideas.

This is more a C / gcc problem than Java, but I'd like to know if
someone has faced this before:
I'm trying to invoke some C code from a Java program using Java native
interface. To achieve this, I'm  building a shared library (.so)