Installing Oracle Java on Ubuntu can be a pretty daunting task. After reading the Ubuntu documentation here:
Java
I came across this nice github project:
oab-java6
Simply run
git clone https://github.com/flexiondotorg/oab-java6.git
Then cd into oab-java6 and run
sudo ./oab-java.sh
This will set up a local apt repository for Sun Java 6 and Oracle Java 7. Now run
sudo apt-get update
to add the packages from the repository. As the documentation states, you can now run
sudo apt-get install sun-java6-jre
To install Java 6 runtime environment.
One small thing to note:
I had to run
sudo update-alternatives --config java
and select the Sun JRE since the system defaulted to IcedTea.
Now do
java -version
to see what you have!