安裝jre

1. 從http://www.oracle.com/technetwork/java/javase/downloads/jre7-downloads-1880261.html
下載jre runtime
2. cp -r jre-7u67-linux-x64.tar.gz /usr/local/java/
3. cd /usr/local/java
4. sudo tar xvzf jre-7u67-linux-x64.tar.gz
5. cd ~
6. sudo vim .profile
7. 加上
JAVA_HOME=/usr/local/java/jre1.7.0_67
PATH=$PATH:$HOME/bin:$JAVA_HOME/bin
export JAVA_HOME
export PATH

7. source .profile

8. java -version