step1: sudo gedit /etc/profile
step2: JAVA_HOME每個人不一樣
export JAVA_HOME=/usr/lib/jvm/java-6-sun-1.6.0.10
export CLASSPATH=.:$JAVA_HOME/lib:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$CLASSPATH:/usr/share/java/mysql.jar (此為jdbc設置)
export PATH=$JAVA_HOME/bin:$PATH
step2: JAVA_HOME每個人不一樣
export JAVA_HOME=/usr/lib/jvm/java-6-sun-1.6.0.10
export CLASSPATH=.:$JAVA_HOME/lib:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$CLASSPATH:/usr/share/java/mysql.jar (此為jdbc設置)
export PATH=$JAVA_HOME/bin:$PATH