安裝python-software-properties
$sudo apt-get install python-software-properties
$sudo apt-get install software-properties-common
首先添加ppa
$ sudo add-apt-repository ppa:webupd8team/java
然后更新系統
$ sudo apt-get update
最后開始安裝
$ sudo apt-get install oracle-java8-installer
$ java -version
java version "1.8.0_05"
Java(TM) SE Runtime Environment (build 1.8.0_05-b13)
Java HotSpot(TM) Server VM (build 25.5-b02, mixed mode)
java版本切換
sudo update-java-alternatives -s java-8-oracle
來自 <http://blog.csdn.net/coding_my_future/article/details/49927749>