3.MacOS系列：Java环境搭建

1.下载JDK

2.安装JDK

3.环境变量配置

4.卸载JDK

---

1.下载JDK

官网下载：略

---

2.安装JDK

傻瓜式安装：略

---

3.环境变量配置

vim /etc/profile

JAVA_HOME="/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home"

export JAVA_HOME

CLASS_PATH="$JAVA_HOME/lib"

PATH=".$PATH:$JAVA_HOME/bin"

source /etc/profile

java -version

---

4.卸载JDK

rm -rf  jdk1.8.0_144.jdk