export JAVA_7_HOME=`/usr/libexec/java_home -v 1.7` export JAVA_8_HOME=`/usr/libexec/java_home -v 1.8` export JAVA_9_HOME=`/usr/libexec/java_home -v 1.9` export JAVA_HOME=$JAVA_8_HOME alias jdk7="export JAVA_HOME=$JAVA_7_HOME" alias jdk8="export JAVA_HOME=$JAVA_8_HOME" alias jdk9="export JAVA_HOME=$J