The JAVA_HOME environment variable is not defined correctly This environment variable is needed to run this program

The JAVA_HOME environment variable is a system variable that is used by Java programs to locate the Java Development Kit (JDK) installation on your machine. If the JAVA_HOME variable is not defined correctly, it means that the system cannot find the JDK and therefore cannot run the program.

To resolve this issue, you need to make sure that the JAVA_HOME variable is set to the correct JDK installation directory. Here are the steps to do so:

1. Determine the correct JDK installation directory on your machine.
2. Open the System Properties dialog by right-clicking on the "My Computer" or "This PC" icon and selecting "Properties".
3. Click on the "Advanced system settings" link on the left side of the window.
4. In the System Properties window, click on the "Environment Variables" button.
5. In the "System Variables" section, locate the JAVA_HOME variable and click on the "Edit" button.
6. In the "Edit Environment Variable" window, make sure that the Variable value is set to the correct JDK installation directory. For example, it should be something like "C:\Program Files\Java\jdk1.8.0_221" without the quotes.
7. Click "OK" to save the changes and close all windows.

After setting the JAVA_HOME variable correctly, you should be able to run the program without encountering the error.