What's New in JDK 9

官网文档：https://docs.oracle.com/javase/9/whatsnew/toc.htm#JSNEW-GUID-C23AFD78-C777-460B-8ACE-58BE5EA681F6 (opens new window)

菜鸟网站：https://www.runoob.com/java/java9-new-features.html (opens new window)