javac无法运行，而且似乎未安装 [英] javac cannot be run, and furthermore does not seem installed

问题描述

我在设置Java时遇到问题.

我已经安装了JRE，将其路径添加到了PATH，并设置了JAVA_HOME和CLASSPATH.现在，java和javacpl可以正常工作，但是运行javac会生成命令未找到的错误.此外，JRE的bin文件夹中甚至似乎都不存在javac.exe.

我如何运行javac?

解决方案

JRE只是 Java运行时环境，它仅包含运行已编译的Java程序所需的基础结构.

要使用javac编译Java源代码，您需要 Java开发工具包(JDK).

在Oracle的 Java下载页面上，选择标有"JDK".

I have a problem involving setting up Java.

I have installed the JRE, added its path to PATH, and set JAVA_HOME and CLASSPATH. Now, java and javacpl work fine, but running javac generates a command-not-found error. Furthermore, javac.exe does not even seem to exist in the JRE's bin folder.

How do I run javac?

解决方案

The JRE is merely the Java Runtime Environment, which includes only the infrastructure needed to run Java programs that are already compiled.

To compile Java source code using javac, you need the Java Development Kit (JDK).

On Oracle's Java download page, choose the package labelled "JDK".

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