sudo apt-get install python-software-properties
sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java7-installer
Check if installation was successful.
java -version
wget https://download.elasticsearch.org/elasticsearch/elasticsearch/elasticsearch-1.0.1.tar.gz
tar -xvf elasticsearch-1.0.1.tar.gz
cd elasticsearch-1.0.1/bin
./elasticsearch