Install Java on Linux Machine

Download the latest JDK from http://java.sun.com/javase/downloads/index.jsp
Select jdk-xxx.xx.Linux.xxx.bin to download for Linux machine

This is a binary file so execute this file.

$ cd /usr
$ ./jdk-xxx.x-linux-i586.bin

Edit your bash profile file to set the Java home.

$cd
$vi .bash_profile
Add/edit these lines
PATH=/usr/jdk-xxx-x.x/bin

JAVA_HOME=/usr/jdk-xxx-x.x/
export JAVA_HOME

#Save and Exit from the vi

$source .bash_profile

Check the java version
$ java -version