Installing Oracle/Sun Java in Ubuntu 11.10

Mostly Linux systems comes with Open JDK. In order to install Sun/Oracle Java, follow the steps below. Please note! you will need sudo access for this. In this section I will install Sun/Oracle Java version 1.6.0_06.

1. Test for Java version installed. Use command java -version.
   
2. sudo add-apt-repository "deb http://us.archive.ubuntu.com/ubuntu/ hardy multiverse"
   
   
3. sudo apt-get update
   
4. sudo apt-get install sun-java6-jdk
   
   
   Select Ok
   
   Select Yes
5. java -version (check the java version installed)
   
6. javac -version (check the javac version installed)
   

In case java is not showing Sun/Oracle JDK as default. You can use below command to set the default version of Java.

• sudo update-alternatives --config java