Installing Java on Ubuntu 11.04

I followed the instructions here:

http://oracamp.com/installing-java-ubuntu-1104-natty-narwhal

java -version
java version "1.6.0_24"
Java(TM) SE Runtime Environment (build 1.6.0_24-b07)
Java HotSpot(TM) Client VM (build 19.1-b02, mixed mode, sharing)