Install JSDK on Ubuntu 6.0

Now go to Sun's website http://java.sun.com and select the java jdk or jre that you want. In my case I needed 1.4.2 so I downloaded j2sdk-1_4_2_09-linux-i586.bin.

Then run the following commands from the terminal:

First install the required packages:
sudo apt-get install fakeroot java-package java-common
Create the Deb file for the install:
fakeroot make-jpkg jre-1_5_0_05-linux-i586.bin
Install The deb file
sudo dpkg -i sun-j2re1.5_1.5.0+update05_i386.deb
Now make Sun's java the default by running this command and selecting it.
sudo update-alternatives --config java