> How to compile java prgms in linux ?Any built in java compilers within linux RH distro ?

As cgkanchi said, Sun's JDK is a good choice for most java programs. However, you may also be interested in trying out IBM's version of java. I tried it, and have had good luck with it so far, but your mileage may vary. I found it to be slightly faster and slightly better at managing its memory than Sun's version, but again, your mileage may vary. It can be found at:

http://www14.software.ibm.com/webapp...id=TDUN-4FF8B2

Sorry that looks ugly, but I didn't design the webpage, I just found it.

As far as java comilers that come with redhat, the only one I know of is kaffe. In 7.2, it came on CD2. My only experience with it wasn't good, so you'd be better off asking someone else how well it works. Hope this helps...