J2SE - Enviromental Variables
 

I installed the J2SE - SDK on Ubuntu,
How do I set the Enviromental Variables?

In your ~/.bash_profile you can add an entry for JAVA_HOME and you can modify your PATH. For example:
The ~/.bash_profile file can be edited with any text editor.

where can i find bash_profile?
:s
i am a newbie :D

In your home directory, it is a hidden file so you'll have to make your file manager display hidden files.

Which distro did you install? You may need to do more than just setting the path.

what's a distro?

http://en.wikipedia.org/wiki/Linux_distribution
http://en.wikipedia.org/wiki/BASH#Startup_scripts

Once logon, type

$cd

Now, you are in your home dir, then type

$vi ./bash_profile

Then add following line to the file

export JAVA_HOME=/usr/local/jdk
export PATH=$PATH:$JAVA_HOME/bin

There shouldn't be a bash_profile in Ubuntu. It uses .profile instead (and it installs its JDK to /usr/lib/jvm, not to /usr/local).