If you want to quit the visudo command in Java without saving any changes, you can use the :q! command to force quit without saving.
To use the :q! command, you will need to be in the vi or vim text editor, which is the default editor for the visudo command. To enter the vi or vim editor, you will need to run the visudo command with the -e flag.
Here's an example of how to use the :q! command to quit visudo without saving:
sudo visudo -e # make some changes to the file :q!
This will exit the visudo editor and discard any changes you made to the file.
You can find more information about the visudo command and the :q! command in the documentation for the vi or vim text editor.