How to install and use java SE 6 jdk in linux ubuntu 11.10 (oneiric) online installation

How to install and use java SE 6 jdk in linux ubuntu 11.10 (oneiric)

online installation

NOTE

This for java programer, for those whom developing java programs, NOT for java internet-based apps. If you developing an internet-based apps you should install java EE 6 or later.

On-line Installation using terminal

For those users working in linux ubuntu version 11.10 (oneiric), first it's important to know that there is two ways to install java SE 6 jdk.

1. Through linux terminal.
   Linux gives users full power in the work-environment by giving something called open-jdk, open-jdk is an open source for java SE 6 jdk, To install java SE 6 open-jdk through the linux terminal use the following commands:

1. add PPA sun-java 6 to your linux system

   $ sudo apt-add-repository ppa:flexiondotorg/java

2. update your system

   $ sudo apt-get update

3. installation process including java explorer plug-in

   $ sudo apt-get install sun-java6-jdk sun-java6-plugin

2. Through ubuntu software center (the easiest way).
   Fisrt open the ubuntu software center

3. click on Developer tools

4. click on java

5. click on open-jdk java 6 runtime
   - the upper option is to install java plug-in.
   - in the following photo it appear remove because I already install it, but for you it will appear install instead of remove.

Next topic will be off-line installation process from Linux packages.