oracle jdk11下载
oracle jdk所有版本归档【archive】下载地址:
https://www.oracle.com/java/technologies/downloads/archive/
oracle jdk11下载地址:
https://www.oracle.com/java/technologies/javase/jdk11-archive-downloads.html
配置或修改window JAVA_HOME
idea 修改
Modules 也要对应修改,如果有的话
全局搜索<maven.compiler.source>
全局搜索<java.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>11</maven.compiler.source>
<maven.compiler.target>11