# tar zxf jdk-8u101-linux-x64.tar.gz -C /opt/ # cd /opt/;ln -s jdk1.8.0_101 jdk # vim /etc/profile.d/java.sh export JAVA_HOME=/opt/jdk export JAVA_BIN=/opt/jdk/bin export PATH=$PATH:$JAVA_HOME/bin export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar export JAVA_HOME JAVA_BIN PATH CLASSPATH # source /etc/profile.d/java.sh # java -version