Why is \'java\' not recognized as an internal or external command in Windows 7 and how to fix it?

Resolving the "'Java' not Recognized as an Internal Command" Issue

When executing the "java -version" command, Windows 7 users may encounter the error message "'java' is not recognized as an internal or external command, operable program or batch file." This error typically arises when the Java environment variables are misconfigured.

To rectify this issue, follow these steps:

1. Configure Environment Variables:

   Ensure that the JAVA_HOME variable is set to the path of your Java installation directory (e.g., C:Program FilesJavajdk-11.0.9).

   Additionally, add the path to the Java executable (%JAVA_HOME%bin) to the PATH variable.

2. Alternative PATH Configuration:

   If desired, you can directly append the path to the Java executable bin folder to the PATH variable, without using JAVA_HOME. However, this approach becomes less convenient when managing multiple Java versions on your machine.

Once these configurations are applied, the "java -version" command should successfully display the version of Java installed on your system.

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