Installing Sun Java JRE on Lucid Lynx - 10.4LTS

sudo add-apt-repository "deb http://archive.canonical.com/ lucid partner"
sudo apt-get update
sudo apt-get install sun-java6-jre sun-java6-plugin
sudo update-alternatives --config java

From http://www.clickonf5.org/linux/how-install-sun-java-ubuntu-1004-lts/7777