Java API 下载方法

https://www.oracle.com/index.html

https://www.oracle.com/java/technologies/java-se.html

http://www.oracle.com/technetwork/java/javase/downloads/index.html

http://www.oracle.com/technetwork/java/javase/documentation/jdk8-doc-downloads-2133158.html

原文：https://www.cnblogs.com/cjsblog/p/9061087.html