如何在ubuntu 16.04中安装java 8？
如何在Ubuntu 16.04中安装java-JDK 8＆maven而不添加任何PPA？
打开终端（ ctrl + alt + t ）：
sudo apt-get install openjdk-8* 这将安装以下包：
openjdk-8-jre-dcevm - Alternative VM for OpenJDK 8 with enhanced class redefinition openjdk-8-jre-zero - Alternative JVM for OpenJDK, using Zero/Shark openjdk-8-dbg - Java runtime based on OpenJDK (debugging symbols) openjdk-8-demo - Java runtime based on OpenJDK (demos and examples) openjdk-8-doc - OpenJDK Development Kit (JDK) documentation openjdk-8-jdk - OpenJDK Development Kit (JDK) openjdk-8-jdk-headless - OpenJDK Development Kit (JDK) (headless) openjdk-8-jre - OpenJDK Java runtime, using Hotspot JIT openjdk-8-jre-headless - OpenJDK Java runtime, using Hotspot JIT (headless) openjdk-8-jre-jamvm - Alternative JVM for OpenJDK, using JamVM openjdk-8-source - OpenJDK Development Kit (JDK) source files
现在到了maven ：
sudo apt-get install maven maven*
这将安装以下包：
maven - Java software project management and comprehension tool maven-ant-helper - helper scripts for building Maven components with ant maven-debian-helper - Helper tools for building Debian packages with Maven maven-repo-helper - Helper tools for including Maven metadata in Debian packages