'Java' is not recognized as an internal or external command

If you are getting the error 'Java' is not recognized as an internal or external command, it means that the Java executable is not in your system's PATH. This means that when you try to run the java command, the system does not know where to find it.

To fix this error, you will need to add the path to the Java executable to your system's PATH. Here's how you can do this on Windows:

  1. Open the Start menu and search for "Environment Variables".
  2. Click on "Edit the system environment variables" button.
  3. In the System Properties window, click on the "Environment Variables" button.
  4. Under "System Variables", scroll down and find the "Path" variable, then click on "Edit".
  5. In the Edit Environment Variable window, click on "New" and add the path to the Java executable (e.g., "C:\Program Files\Java\jdk1.8.0_211\bin").
  6. Click "OK" to close all windows.

Now you should be able to run the java command from the command prompt.

If you are using a different operating system, the process for adding the Java executable to the PATH may be slightly different. You can refer to the documentation for your operating system for more information.

I hope this helps! Let me know if you have any questions.