java安装

1，下载JDK

1，下载JDK

jdk-14.0.1_osx-x64_bin.dmg

sudo vim /etc/profile # JAVA JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk-14.0.1.jdk/Contents/Home CLASS_PATH=$JAVA_HOME/lib PATH=.:$PATH:$JAVA_HOME/bin # source /etc/profile # echo $JAVA_HOME /Library/Java/JavaVirtualMachines/jdk-14.0.1.jdk/Contents/Home # echo $CLASS_PATH /Library/Java/JavaVirtualMachines/jdk-14.0.1.jdk/Contents/Home/lib

参考：

JDK下载OSX搭建Java运行环境MacOS下搭建JAVA开发环境