Installing JAVA for octave

[kees]

To use the "io package" I had to install Java aswell. I downloaded the
package from the SourceForge.net and tried to install it like I did with
all the other packages  " pkg install java-1.2.9.tar.gz. etc

However, I received an error and I had to do something with
"setenv("JAVA_HOME", "full/path/to /JavaJDK") and that is what I not
really understand what I have to do here. I executed it and of course I
used the correct path but it did not work. It appears that it has to be
installed somewhere specific but I do not know where and how.

So does anyone knows how to do this correctly?

Kees
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[PhilipNienhuis]

kees wrote

To use the "io package" I had to install Java aswell. I downloaded the
package from the SourceForge.net and tried to install it like I did with
all the other packages  " pkg install java-1.2.9.tar.gz. etc

However, I received an error and I had to do something with
"setenv("JAVA_HOME", "full/path/to /JavaJDK") and that is what I not
really understand what I have to do here. I executed it and of course I
used the correct path but it did not work. It appears that it has to be
installed somewhere specific but I do not know where and how.

So does anyone knows how to do this correctly?

What Octave version? what operating system & version (Linux distro / Windows XP/7/8 / ...)?

Philip

[kees]

On 03/03/2013 03:20 PM, PhilipNienhuis wrote:

> kees wrote
>> To use the "io package" I had to install Java aswell. I downloaded the
>> package from the SourceForge.net and tried to install it like I did with
>> all the other packages  " pkg install java-1.2.9.tar.gz. etc
>>
>> However, I received an error and I had to do something with
>> "setenv("JAVA_HOME", "full/path/to /JavaJDK") and that is what I not
>> really understand what I have to do here. I executed it and of course I
>> used the correct path but it did not work. It appears that it has to be
>> installed somewhere specific but I do not know where and how.
>>
>> So does anyone knows how to do this correctly?
> What Octave version? what operating system & version (Linux distro / Windows
> XP/7/8 / ...)?
>
> Philip
>
>
>
> --
> View this message in context: http://octave.1599824.n4.nabble.com/Installing-JAVA-for-octave-tp4650491p4650494.html
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> _______________________________________________
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> [hidden email]
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>

Hi Philip,

I am using Linux Fedora 17
GNU Octave 3.6.3
I am trying to install : Java-1.2.9

Kees

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[PhilipNienhuis]

kees wrote

On 03/03/2013 03:20 PM, PhilipNienhuis wrote:
> kees wrote
>> To use the "io package" I had to install Java aswell. I downloaded the
>> package from the SourceForge.net and tried to install it like I did with
>> all the other packages  " pkg install java-1.2.9.tar.gz. etc
>>
>> However, I received an error and I had to do something with
>> "setenv("JAVA_HOME", "full/path/to /JavaJDK") and that is what I not
>> really understand what I have to do here. I executed it and of course I
>> used the correct path but it did not work. It appears that it has to be
>> installed somewhere specific but I do not know where and how.
>>
>> So does anyone knows how to do this correctly?
> What Octave version? what operating system & version (Linux distro / Windows
> XP/7/8 / ...)?
>
> Philip
<snip>

Hi Philip,

I am using Linux Fedora 17
GNU Octave 3.6.3
I am trying to install : Java-1.2.9

Try to find where your JDK has been installed.

Might be in /usr/lib/jvm, in my system (Mageia 2, also rpm based) it is there but only after following a chain of symlinks I could find the location.

If you have a 64-bit system, chances are that you must symlink <JAVA_HOME>/jre/lib/<arch>/server/libjvm.so from <JAVA_HOME>/jre/lib/<arch>/client/libjvm.so  (another gotcha; I should enter that on the wiki one of these days). <arch>  = something like i386, x86_64, whatever

Try (from a (bash?) shell prompt)  
which javac
From the answer you might deduce the proper JAVA_HOME setting (possibly after following a long chain of symlinks). It is the location of the "real" javac, minus trailing /bin/

Philip