Thanks for your help j.post that did it.
Edit .bashrc in your home directory and add this line:
PATH=$PATH:/usr/java/j2sdk1.4.0/bin
(assuming you have version 1.4.0--change the path to wherever the java SDK
was installed.) Then restart your desktop GUI.
When I asked this at a forum I got told
Hello,
I'm having problems with red hat, I have just started with Linux and am not
very good with the command line.
I am trying to install Sun ONE Studio (Java IDE) but first I have to install
Java SDK. I have installed it but when I try and run the installer for Sun
ONE I get an error it says
