Install java on Ubuntu

Install java on Ubuntu

Install sun-java5-jdk from the “Multiverse” repository (see Add Applications). You will need to use Synaptic Package Manager to install these packages.

Read the Java license presented. You must accept it to continue.

To get your system to use Sun Java instead of the open-source (but less functional) GIJ that is installed by default, run:

sudo update-alternatives --config java

and choose the option that has j2re1.5-sun in it.

Java 1.6 is also available, and can be installed by following the above directions, swapping all instances of 1.5 to 1.6