java -version

yum remove java

yum groupremove java

java -version

tar -zxvf jdk-8u60-linux-x64.tar.gz

vim /etc/profile

export JAVA_HOME=/opt/jdk1.8.0_60

export PATH=$PATH:$JAVA_HOME/bin

export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar: