Install Oracle Java 8 In Debian Jessie
$ sudo sh -c 'echo "deb http://ppa.launchpad.net/webupd8team/java/ubuntu trusty main" >> /etc/apt/sources.list'
$ sudo sh -c 'echo "deb-src http://ppa.launchpad.net/webupd8team/java/ubuntu trusty main" >> /etc/apt/sources.list'
$ sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys EEA14886
$ sudo apt-get update
$ sudo apt-get install oracle-java8-installer