wget http://javadl.sun.com/webapps/download/AutoDL?BundleId=106240 -O jre-linux.tar.gz
tar xvfz jre-linux.tar.gz
mkdir /usr/lib/jvm
mv jre1.8.0_45 /usr/lib/jvm/jre1.8.0_45
update-alternatives --install /usr/bin/java java /usr/lib/jvm/jre1.8.0_45/bin/java 1
java -version
update-alternatives --config java