Hi Miquel,

On Tue, Mar 15, 2005 at 07:13:00PM -0500, Miguel wrote:
> >> > Does this mean there is something wrong with my java support on this
> >> > machine? If so, what?
> >>
> >> The problem is that the Kaffe JVM does not provide Swing at this moment.
> >> Jmol requires Swing and thus the Sun JVM.
> >
> > I get very confused about Java nomenclature. What is JVM?
> 
> JVM = Java Virtual Machine ... although technically not correct, many
> people use the term interchangably with JRE.
> 
> > I was just
> > about getting my brain around the difference between the runtime
> > environment and the development kit. Am I right that I need to update
> > the development kit in order to run the Jmol application?
> 
> No, the Jmol application is a normal application that does not require the
> development kit.
> 
> However, the java runtime on your system is very old ... it needs to be
> updated.

I realised this. I found I had the rpm.bin for j2re1.4.0_02. I think I
downloaded it long ago with an old version of jmol which I never
followed through with. I installed this and it put everything in
/usr/java/j2re1.4.0_02, but "java -version" still finds the old version. 

Do I need to put /usr/java/j2re1.4.0_02 in my path, or create links, or
delete the old java - /usr/bin/java or what?

Or is this just too old also and I need to download version 5.0?

> > I had assumed I needed the runtime environment as I was running an
> > application and not developing anything, but I now suspect that this is
> > not so and that I need the JDK.
> 
> You are correct, development kit is not needed.

Good to know I was right originally.
 
> > However, going to www.java.com and searching around to download stuff, I
> > always get a page not found. This is with 1.5 and 1.4.2. Which should I
> > get if I can get anything? And where should I get it from.
> 
> http://java.com/en/download/manual.jsp
> 
> > My machine is linux running Redhat 7.2.
> 
> (RedHat 7.2 was announced in Jan 2002 ... you may want to consider
> installing something newer)

I am very doubtfull about whether some ab initio codes run well on more
recent RHs. I plan to upgrade linux on my laptop first and see whether
stuff still works without disrupting production on my main machine.
 
> If you are running on Linux then it is a complicated world ...
> 
> Download the java runtime environment .rpm.bin file
> su #become root
> chmod +x ja*.rpm.bin
> ./ja*.rpm.bin

I ran j2re-1_4_0_02-linux-i586-rpm.bin and it gave me
j2re-1_4_0_02-fcs-linux-i586.rpm. I then ran that as explained above.

> Now, given the age of 7.2, this may not work ... but I suspect that it will.

It seemed to.

Thanks again. Brian.
 
> 
> Miguel
> 
> 
> 
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-- 
A child of five could understand this!  Fetch me a child of five. 
                                               -- Marx (guess which one)
Brian Salter-Duke (Brian Duke) Email: b_duke(AT)octa4(DOT)net(DOT)au


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