如何知道我机器上的jdk版本? [英] How to know the jdk version on my machine?

问题描述

我最近卸载了 JDK 11 ，并安装了 JDK 8 .为了进行确认，我想检查在我的 Windows 10 计算机上安装了哪个JDK.我在cmd上键入java -version，然后收到错误消息

I have recently uninstalled JDK 11 and installed JDK 8. For confirmation, I want to check which JDK is installed on my Windows 10 machine. I typed java -version on cmd then get the error message

java不被识别为内部或外部命令

java is not recognized as an internal or external command

问题::如何知道PC上安装了哪个JDK版本?

Question: How to know which JDK version installed on pc?

推荐答案

您可能需要在控制面板中找到的环境变量中添加path 打开安装的 Jdk ，并在环境变量的路径中添加到/bin.

you might need to add path in environment variables which you can find in Control Panel open the Jdk where you installed and add until /bin in the path in environment variables.

添加到系统变量中的路径变量中的/bin，该变量位于环境变量中.

Add until /bin in path variable in System Variables which is residing in Environment Variables.

然后做 java -version 可能会出现.

Then do java -version which might show up.

如果仍然存在问题，请尝试重新启动计算机，然后查看.

If still problem persists, try restarting your pc and see.

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