java JDK 的主目录是什么？
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What is the home directory for JDK?
提问by Akash Gupta
I am having a problem in selecting home directory for JDK. Even though I have selected the following path: "C:\Program Files (x86)\Java\jre1.8.0_91", it keeps showing the error: "The selected directory is not a valid home for JDK". My java folder has two folders- bin and lib. Window for selecting home directory
我在为 JDK 选择主目录时遇到问题。即使我选择了以下路径：“C:\Program Files (x86)\Java\jre1.8.0_91”，它仍然显示错误：“所选目录不是 JDK 的有效主页”。我的 java 文件夹有两个文件夹 - bin 和 lib。 选择主目录的窗口
Kindly help me in selecting home directory. Thank you!
请帮助我选择主目录。谢谢！
回答by Aaron
You have currently located a JRE, or Java Runtime Environment. That does indeed contain a javaexecutable and can launch JVMs, but it's not made for development, rather more as a "Java client". For example if you look into it's /binfolder, you won't find the javacexecutable needed for compiling.
您当前已找到 JRE 或 Java 运行时环境。它确实包含一个java可执行文件并且可以启动 JVM，但它不是为开发而设计的，而更像是一个“Java 客户端”。例如，如果您查看它的/bin文件夹，您将找不到javac编译所需的可执行文件。
What you need is a JDK, or Java Development Toolkit. It contains all the JRE contains, with additional tools for development. You can find it for download on the Oracle website.
您需要的是 JDK 或 Java 开发工具包。它包含所有 JRE 所包含的内容，以及用于开发的附加工具。您可以在Oracle 网站上找到它以供下载。
回答by Abhay
Your home directory will jdk not jre. If your jdk is installed properly then there will be a jdk folder. Try setting C:\Program Files (x86)\Java\jdk1.8.0_91\bin
你的主目录是 jdk 而不是 jre。如果您的 jdk 安装正确，则会有一个 jdk 文件夹。尝试设置 C:\Program Files (x86)\Java\jdk1.8.0_91\bin
回答by VatsalSura
Your home directory for JDK would be "C:\Program Files (x86)\Java\jre1.8.0_91\bin"
您的 JDK 主目录将是 "C:\Program Files (x86)\Java\jre1.8.0_91\bin"
回答by Méhdi Màick
try this on windows to know the home of your jdk
在 Windows 上试试这个以了解你的 jdk 的家
c:\> for %i in (java.exe) do @echo. %~$PATH:i
