[Linux] 安裝 Java 在 Ubuntu 16.04

Installing the Default JRE/JDK
$ sudo apt-get update
$ sudo apt-get install default-jre
$ sudo apt-get install default-jdk

Installing the Oracle JDK



$ sudo add-apt-repository ppa:webupd8team/java
$ sudo apt-get update
$ sudo apt-get install oracle-java8-installer

Managing Java
$ sudo update-alternatives --config java

Setting the JAVA_HOME Environment Variable
$ sudo update-alternatives --config java

$ vim ~/.bashrc
JAVA_HOME="/usr/lib/jvm/java-8-oracle"


參考這篇：
https://www.digitalocean.com/community/tutorials/how-to-install-java-with-apt-get-on-ubuntu-16-04