Here is the steps to install Oracle Java from bin file on ubuntu Server.
1. Download oracle jdk bin file.
2. Put downloaded file on your installation location for eg. /opt
3. Make the downloaded bin file executable
sudo a+X jdk-6u31-linux-i586.bin
4. run the executable java bin file.
sh ./jdk...bin
5.Update your installation
sudo update-alternatives --install "/usr/bin/java" "java" "/opt/jdk1.6.0_31/bin/java" 1
sudo update-alternatives --set java /opt/jdk1.6.0_31/bin/java
6. Now check The current version of java
java --verson
