Javac Not Working in Windows Command Prompt

javac not working in windows command prompt

If you added it in the control panel while your command prompt was open, that won't affect your current command prompt. You'll need to exit and re-open or simply do:

set "path=%path%;c:\program files\java\jdk1.6.0_16\bin"

By way of checking, execute:

echo %path%

from your command prompt and let us know what it is.

Otherwise, make sure there is a javac in that directory by trying:

"c:\program files\java\jdk1.6.0_16\bin\javac.exe"

from the command prompt. You can also tell which executable (if any) is being used with the command:

for %i in (javac.exe) do @echo %~$PATH:i

This is a neat trick similar to the which and/or whence commands in some UNIX-type operating systems.

javac' is not recognized as an internal or external command, operable program or batch file after adding to PATH

Right click Computer

Click the properties

On the left pane select Advanced System Settings

Select Environment Variables

Under the System Variables,
Select PATH and click edit,
and then click new and add path as C:\Program
Files\Java\jdk1.8.0_131\bin (depending on your installation path)
and finally click ok

Next restart your command prompt and open it and try javac

Javac is not recognized even after setting the path

This problem happens when you define your JAVA_HOME under User variables and not under the system variables.

Try moving the JAVA_HOME to System Variables and restart the command prompt. It will work like a charm.

CMD/PowerShell: 'javac' is not recognized as an internal or external command, operable program or batch file

You only need to add the Java bin location to the global PATH variable. So, you will be able to execute Java commands anywhere on the computer.

See: https://www.java.com/en/download/help/path.xml

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