安装OpenJDK1.8

CentOs 7

安装jre

sudo yum install java-1.8.0-openjdk

此时，执行java -version

openjdk version "1.8.0_111"
OpenJDK Runtime Environment (build 1.8.0_111-b15)
OpenJDK 64-Bit Server VM (build 25.111-b15, mixed mode)

执行javac -version，显示没有此命令

安装java开发工具

sudo yum install java-1.8.0-openjdk-devel

执行javac -version

javac 1.8.0_111

Ubuntu

sudo add-apt-repository ppa:openjdk-r/ppa
sudo apt-get update 
sudo apt-get install openjdk-8-jdk

切换

sudo update-alternatives --config java

附：Android6.0编译

sudo apt-get install git-core gnupg flex bison gperf build-essential zip curl zlib1g-dev gcc-multilib g++-multilib 
libc6-dev-i386 lib32ncurses5-dev ia32-libs x11proto-core-dev libx11-dev lib32readline5-dev lib32z-dev libxml-simple-perl 

sudo apt-get install gcc-multilib g++-multilib libc6-dev-i386 lib32ncurses5-dev ia32-libs x11proto-core-dev libx11-dev 
lib32readline5-dev lib32z-dev libxml-simple-perl libxml2-utils