java jdk下载与安装
依次找到products -> java -> download java(jdk) for developers4
4, 使用 java -version 命令验证 jdk 版本是否修改成功.
6,安装完成7,查看jdk版本,在windows命令提示框中输入:java -version
com/java/technologies/downloads/#java8-windows(1)首先进入java的
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