下载
jdk下载地址：https://www.oracle.com/java/technologies/downloads/#java17
安装 jdk17
查看版本号
yshuqdeMacBook-Pro:~ yshuq$ java -version
java version "17.0.9" 2023-10-17 LTS
Java(TM) SE Runtime Environment (build 17.0.9+11-LTS-201)
Java HotSpot(TM) 64-Bit Server VM (build 17.0.9+11-LTS-201, mixed mode, sharing)
yshuqdeMacBook-Pro:~ yshuq$