How to set java_home on Windows 7?

To set the JAVA_HOME environment variable on Windows 7, follow these steps:

1. Right-click on "Computer" and select "Properties".
2. In the "System Properties" window, click on the "Advanced" tab.
3. 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 installation directory (e.g., "C:\Program Files\Java\jdk1.8.0_211").
6. Click "OK" to close all windows.

Now you should be able to use the java and javac commands from the command prompt.

If you want to set the JAVA_HOME variable specifically, you can follow these steps:

1. Follow steps 1-3 above to open the "Environment Variables" window.
2. Under "System Variables", click on "New".
3. In the "New System Variable" window, enter "JAVA_HOME" in the "Variable name" field and the path to the Java installation directory in the "Variable value" field (e.g., "C:\Program Files\Java\jdk1.8.0_211").
4. Click "OK" to close all windows.

Now you should be able to use the JAVA_HOME variable in your scripts and applications.

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