Oracle (Sun) Java on Ubuntu 10.4

Oracle (Sun) Java JDK is installed on Ubuntu 10.4.

[0]
Go to the Oracle downloads page. The current link is
http://www.oracle.com/technetwork/java/javase/downloads/jdk-6u27-download-440405.html.
Choose jdk-6u27-linux-i586.bin (say) to download.

[1]
On console (password should be set where required):

[prompt] sudo mkdir /opt/java/

[prompt] sudo cp /home/<where_downloaded>/jdk-6u27-linux-i586.bin /opt/java/jdk-6u27-linux-i586.bin

[prompt] cd /opt/java

[2]
[prompt] sudo chmod a+x jdk-6u27-linux-i586.bin

[prompt] sudo ./jdk-6u27-linux-i586.bin

Unpacking...
Checksumming...
Extracting...
UnZipSFX 5.50 of 17 February 2002, by Info-ZIP (Zip-Bugs@lists.wku.edu).
   creating: jdk1.6.0_27/

... ... ...

Press Enter to continue.....


Done.

[3]

[prompt] sudo gedit /etc/bash.bashrc

At the end of the file bash.bashrc put the following instructions.

export JAVA_HOME=/opt/java/jdk1.6.0_27
export PATH=$JAVA_HOME/bin:$PATH

[4]
Open a new console and run the command:
[prompt] java -version

to which the following result is expected:

java version "1.6.0_27"
Java (TM) SE Runtime Environment (build 1.6.0_27-b07)
Java HotSpot (TM) Server VM (build 20.2-b06, mixed mode)