1-查看当前本机JVM版本:
/usr/libexec/java_home -V
2- 安装jdk1.7
https://developer.oracle.com/java
傻瓜安装即可;
3-res
4-装idea
装社区版;配置jdk1.7;运行示例会出现:
objc[73488]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.7.0_80.jdk/Contents/Home/bin/java and /Library/Java/JavaVirtualMachines/jdk1.7.0_80.jdk/Contents/Home/jre/lib/libinstrument.dylib. One of the two will be used. Which one is undefined.
的错误;原因以及解决:
https://blog.csdn.net/lizhaowei213/article/details/68951671