Go to the Java website, choose the JRE or JDK based on your platform and needs. Download the requisite .bin files and upload them to the serveradmin home folder. For older versions go to the Java Archives site.
Steps for JRE and JDK are both the same. Here is an example of a JDK setup,
64-bit Java is not recommended at the moment due to significant loss in performance. If 64-bit Java is used, as a convention, we recommend adding to the default folder name _64-bit. In the above example, it would be, jre1.6.0_16_64-bit.
In order to run 64-bit Ubuntu with 32-bit Java you first need ia32-libs,
sudo apt-get install ia32-libs # Required for 32-bit Java on 64-bit Ubuntu
Now you can install 32-bit Java,
su - serveradmin # If you are not already serveradmin cd ~ # Switch to the serveradmin home directory chmod +x jdk-6u22-linux-i586.bin ./jdk-6u22-linux-i586.bin Unpacking... Checksumming... Extracting... ./jdk-6u22-linux-i586.bin: 113: ./install.sfx.7783: not found Failed to extract the files. Please refer to the Troubleshooting section of the Installation Instructions on the download page for more information.