How do I install the Sun/Oracle Java SDK on Ubuntu?

NOTE: Some of the contents of this answer might have become obsolete and there are some comments where people have reported problems. You're advised to read through the comments first. -- Ubuntu 11.10 Oneric [Source] Ubuntu 12.04 Precise Clean up the historical open jdk: Add a new repo and install the sdk: If you want the JRE and the browser plugin: [Source] Ubuntu 12.04 (Precise Pangolin) - another way Thanks to the comments, please note that you can try this method too: http://www.liberiangee…