#/etc/profilesudo vim /etc/profileݣ
export JAVA_HOME=/usr/local/jdk1.7.0_79
export PATH=$JAVA_HOME/bin:$PATH
export CLASSPATH=.:$JAVA_HOME/lib/tools.jar:$JAVA_HOME/lib/dt.jar


#Ч
source /etc/profile

#֤
java Cversion


