cd /usr/local
mkdir -p java/jdk
cd java/jdk
tar -zxvf jdk-8u131-linux-x64.tar.gz
mv jdk1.8.0.131 jdk1.8
vi /etc/profile
export JAVA_HOME=/usr/local/java/jdk/jdk1.8
export PATH=$PATH:$JAVA_HOME/bin
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
source /etc/profile
java -version
