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Old 09-21-2002, 01:48 PM   #1
OrganicX
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Red Hat 7.3 Java question


Im very new to both Linux and java. Redhat 7.3 comes with two executables called j2re-1_3_1_03-linux-i386-rpm.bin
and j2sdk-1_3_1_03-linux-i386-rpm.bin

can one of you tell me where to write and run and view the results of a simple java program? whats the procedure? do I have to run both executables and write a program in that directory? Im confused can someone help?

I have no problem with doing c programs from the consol in Linux, but java is different.
 
Old 09-21-2002, 02:04 PM   #2
stickman
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You might try the tutorials over at java.sun.com. You might even consider the O'Reilly book on Java.
 
Old 09-21-2002, 02:06 PM   #3
neo77777
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ok, first thing first, if you want to develop java programs (I see that you do), then you need to install j2sdk (the version you have a bit outdated, but it is ok, if you are just a beginer to Java). Open up an Xterm (Gnome Term, Konsole, etc)
Now run the .bin file (but before you do make sure it has executable bit set)
chmod 755 /path/to/j2sdk-1_3_1_03-linux-i386-rpm.bin
/path/to/j2sdk-1_3_1_03-linux-i386-rpm.bin
it will unpack java into a folder in your current dfirectory, after it is done you can move it to /usr/local for instance
mv j2sdk-1.3.1_03/ /usr/local/java
For this to work you need to be root or you must have enough priveleges to write into /usr/local
now you should setup your path to java executable
export PATH=$PATH:/usr/local/java/bin
to make the PATH permanent you need to include the following line into /etc/profile (if you want all the accounts to have PATH pointed to java) just insert
PATH=$PATH:/usr/local/java/bin
before the
export PATH OTHER_ENV_VARS
statement
and as a regular user run
. /etc/profile
It's dot followed by space followed by /etc/profile
so now when you as a regular user issue
java -version
it should return the version of java and VM.
have fun coding Java.

Last edited by neo77777; 09-21-2002 at 02:07 PM.
 
Old 09-21-2002, 02:56 PM   #4
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THANK YOU!!
 
  


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