I installed jdk in ubuntu linux 9.04 last week. Following a post in a forum, I changed bash_profile file to add JAVA_HOME and PATH as last line. When I restarted the system, i had the horror of system not booting. I had to reinstall the OS. Can anybody explain a safe way to do this???
The way I did it was to edit ~/.bashrc, adding the following line:
Note I addded a . as well, so I can call en executable in the same directory without writing "./xxx". You can write the same line as a command whenever you open a shell; then you can alter the JDK version used for different shells.