Install Java 1.8 on Redhat

yum install java-1.8.0-openjdk
yum install java-1.8.0-openjdk-devel
cd /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.71-1.b15.el6_7.x86_64/jre/bin/
alternatives --install /usr/bin/java java /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.71-1.b15.el6_7.x86_64/jre/bin/java 2
alternatives --config java