如何在Ubuntu 16.04安裝java-JDK 8 & maven而不添加任何PPA？
答案1
開啟終端機（ctrl++ alt）t：
sudo apt-get install openjdk-8*
這將安裝以下軟體包：
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
現在maven：
sudo apt-get install maven maven*
這將安裝以下軟體包：
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