Install Oracle Java Runtime (JRE) 7 in Ubuntu 1...

Objectives:

Install Oracle Java / JRE in Ubuntu 12.04 (Precise Pangolin)

Enjoy!

看看系統裏是否有openjdk,若有須要清除。個人系統裏沒有安裝過，比較省事。去Oracle官方下載jdk最新版本

操做過程以下：

tar -xvf ~/Downloads/jre-7u4-linux-i586.tar.gz

sudo mkdir -p /usr/lib/jvm/jre1.7.0

sudo mv jre1.7.0_04/* /usr/lib/jvm/jre1.7.0/

sudo update-alternatives --install /usr/bin/java java /usr/lib/jvm/jre1.7.0/bin/java 0

mkdir ~/.mozilla/plugins

ln -s /usr/lib/jvm/jre1.7.0/lib/i386/libnpjp2.so ~/.mozilla/plugins/

That’s it! Enjoy!