Intellij doesn't work with JDK9
已回答
when i installed JDK9 and try to open the projects on Intellij didn't work
gave me compilation error on String keyword and System give a message "cannot resolve symbol 'String' "
请先登录再写评论。
What IntelliJ IDEA version do you use? What OS do you use?
Try to remove JDK configuration and add it again.