To install Oracle Java 8 on Ubuntu 14.04. Go to terminal and give following commands.
sudo add-apt-repository ppa:webupd8team/java sudo apt-get update sudo apt-get install oracle-java8-installer
This will first fetch a web installer which is around 160KB. There after actual java (jdk-8uX-linux-i586.tar.gz), which is around 160MB, will be downloaded and installed.
To check, give following command. This command will output the version of java installed.
java -version
Ref: http://stackoverflow.com/questions/16263556/installing-java-7-on-ubuntu