无法在 cmd 上使用 javac 编译 .java 文件 [英] Can't compile .java file using javac on cmd

问题描述

我刚开始学习 Java 编程.按照指南/教程，我创建了我的第一个 .java 文件.当我尝试编译 .java 文件时出现问题.

I just started to learn Java programming. Following a guide/tutorial, I created my first .java file. The problem accrued when I tried to compile the .java file.

我已经安装了 Java SE 开发工具包 8u131.我已将用户路径变量设置为 C:Program Files(x86)Javajdk1.8.0_131in 但这不起作用.

I have installed Java SE Development Kit 8u131. I have set the user Path variable to C:Program Files(x86)Javajdk1.8.0_131in but that didn't work.

我在使用 javac 命令时得到的确切错误如下:'javac' 不是内部或外部命令，也不是可运行的程序或批处理文件.

The exact error I get when using javac command is the following: 'javac' is not recognized as an internal or external command, operable program or batch file.

你们能帮我让 javac 命令工作吗?除了 Path 变量，我不知道还有什么问题.

Can you guys help me get the javac command working? I have no idea what the problem might be besides the Path variable.

环境变量图片

推荐答案

首先需要检查JDK安装在哪个目录(Windows操作系统的C盘内)，然后按照以下步骤操作:

First you need to check that JDK is installed in which Directory (inside C drive of Windows OS), than follow these steps :

1. 转到系统属性 -> 环境变量 -> 系统变量"
2. 找到一个名为PATH"或Path"的变量，然后点击编辑"

3. 点击新建并写下你的JAVA路径，然后在任何地方点击确定

1. Goto "System Properties -> Environment Variables -> System variables"
2. Find a variable named as 'PATH' or 'Path' and click on Edit

3. Click New and write your JAVA path and click OK everywhere

JAVA 路径:

C:Program FilesJavajdk1.8.0_131in(64 位操作系统)

C:Program FilesJavajdk1.8.0_131in (for 64-bit OS)

C:Program Files (x86)Javajdk1.8.0_131in(适用于 32 位操作系统)

C:Program Files (x86)Javajdk1.8.0_131in (for 32-bit OS)

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