- 1 year ago
Javac can't be recognized
If javac
is not recognized as a command, it means that the Java Development Kit (JDK) is not properly configured in your system's environment variables. Follow these steps to fix the issue:
Install Java Development Kit (JDK):
If you haven't already, download and install the Java Development Kit (JDK) from the official Oracle website or another trusted source.Set JAVA_HOME Environment Variable:
After installing the JDK, you need to set theJAVA_HOME
environment variable to point to the JDK installation directory:- Right-click on the "This PC" (or "Computer") icon on your desktop and select "Properties."
- In the System Properties window, click on the "Advanced system settings" link on the left.
- In the System Properties dialog box, click on the "Environment Variables" button.
- Under the "System variables" section, click the "New" button to add a new environment variable.
- Enter
JAVA_HOME
as the variable name and the path to the JDK installation directory as the variable value. For example:C:\Program Files\Java\jdk1.8.0_281
(replace with the actual path). - Click "OK" to save the variable.
Update Path Variable:
Next, add the JDK'sbin
directory to your system'sPath
environment variable so that you can runjavac
and other Java tools from any command prompt:- In the same "Environment Variables" dialog box, locate the "Path" variable under the "System variables" section and select it.
- Click the "Edit" button to modify the variable.
- Click the "New" button and add the path to the JDK's
bin
directory (e.g.,C:\Program Files\Java\jdk1.8.0_281\bin
). - Click "OK" to save the changes.
Restart Your Command Prompt:
Close any open command prompt windows and open a new one. Typejavac -version
and press Enter. You should see the version information of the Java compiler.Verify Installation:
You can also verify that theJAVA_HOME
andPath
variables are set correctly by opening a new command prompt and running the following commands:batchecho %JAVA_HOME%
echo %Path%
These commands should show the correct paths you've set.
By following these steps, you should be able to resolve the issue where javac
is not recognized as a command. Remember that any changes to environment variables require you to start a new command prompt session for the changes to take effect.