JDK-下载和配置

JDK下载和配置

JDK8下载地址
https://blog.51cto.com/qiuyue/2470739

Oracle 下载账号密码
https://blog.youkuaiyun.com/weixin_39917347/article/details/81707106
https://blog.youkuaiyun.com/Amador/article/details/105515964

JDK中各种包的应用：
rt.jar 是Java运行时环境需要加载的所有基础class文件的包。

JDK各个版本描述
https://www.oracle.com/technetwork/java/javase/jdk-relnotes-index-2162236.html

JDK工具
https://blog.youkuaiyun.com/qq_27607965/article/details/79982519