Installing sun jdk 1.6 on Ubuntu Edgy

I had a bit of tough time installing sun jdk 1.6 on Ubuntu edgy using apt-get
Finally I found repository listed at http://ubuntuguide.org/wiki/Ubuntu:Edgy#How_to_add_extra_repositories worked for me
After adding extra repositories I had to do apt-get update and apt-get install sun-java6-jdk