How to solve 'javac is not an internal or external command' problem

What should I do if javac is not an internal or external command? After using environment variables and other configurations, users often encounter this situation, etc., resulting in the failure to use it normally. This problem may be due to improper settings, or There is a problem with the environment configuration, then come here to see the detailed tutorials and solutions~

What to do if javac is not an internal or external command:

1 , find the bin directory under the java installation, run, enter, you can get a prompt, indicating that there is a problem with the environment configuration

2, then open the input :

3. Check whether there are any extra symbols in the java-related java-related paths, such as extra semicolons and commas. As shown in the picture above, it is the normal path

Correct:

Wrong:

4 , right click after the error, click and select

5, then open

6 on the left, and then under Settings , click

#7, and then set it. The variable value is the installation path of jdk.

8. Then set the variable and fill in the variable value

9. Then add the path setting, select it, and click , add

at the end. 10. Click OK. After the settings are completed, close the interface, reopen the CMD command window, enter, and then you can see the relevant information

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