how to install – apache cassandra with openjdk in ubuntu 14.04

# openjdk-8-jdk

sudo apt-get install software-properties-common
sudo add-apt-repository ppa:openjdk-r/ppa

update-alternatives –set java /usr/java/jdk1.8.0_60/bin/java
# update-alternatives –all

# cassandra

sudo gpg –keyserver pgp.mit.edu –recv-keys 2B5C1B00
sudo gpg –export –armor 2B5C1B00 | sudo apt-key add –
sudo gpg –keyserver pgp.mit.edu –recv-keys 0353B12C
sudo gpg –export –armor 0353B12C | sudo apt-key add –

sudo vi /etc/apt/sources.list.d/cassandra.sources.list
deb http://www.apache.org/dist/cassandra/debian 21x main
deb-src http://www.apache.org/dist/cassandra/debian 21x main

sudo vi /etc/apt/sources.list.d/openjdk-r-ppa-trusty.list
deb http://ppa.launchpad.net/openjdk-r/ppa/ubuntu trusty main

sudo apt-get update
sudo apt-get install cassandra