Install JDK 8

# cd /usr/local/src
# curl -LO -H "Cookie: oraclelicense=accept-securebackup-cookie" "http://download.oracle.com/otn-pub/java/jdk/8u71-b15/jdk-8u71-linux-x64.rpm"

# rpm -Uvh jdk-8u71-linux-x64.rpm
# vi /etc/profile
~~~~~
export JAVA_HOME=/usr/java/default
export PATH=$PATH:$JAVA_HOME/bin
export CLASSPATH=.:$JAVA_HOME/jre/lib:$JAVA_HOME/lib:$JAVA_HOME/lib/tools.jar

# source /etc/profile
# alternatives --config java
There is 1 program that provides 'java'.

  Selection    Command
-----------------------------------------------
*+ 1           /usr/java/jdk1.8.0_71/jre/bin/java

Enter to keep the current selection[+], or type selection number: 1

# java -version
java version "1.8.0_71"
Java(TM) SE Runtime Environment (build 1.8.0_71-b15)
Java HotSpot(TM) 64-Bit Server VM (build 25.71-b15, mixed mode)