Install Oracle Java on Debian/Ubuntu 14.04 Linux

Step 1: Install Java 8 (JDK 8)

    Add the webupd8team java PPA repository in your system and install Oracle java8 
    using following set of commands.
    
 
    $ sudo add-apt-repository ppa:webupd8team/java

    $ sudo apt-get update

    $ sudo apt-get install oracle-java8-installer 
    
    

Step 2: Verify JAVA Version

    
    Verify installed version using following command:
    

    $ java -version
    
    java version "1.8.0_20" 
    

Step 3: Setup JAVA Environment

    Set environment variables, Install this package using following command.
    

    $ sudo apt-get install oracle-java8-set-default
    
    

Note: If you found some dependencies errors on Ubuntu run this command

    

    $ sudo apt-get install -f