Fix Java ResourceBundle Loading Issues

When a ResourceBundle cannot find a resource while loading the resource files, it usually throws a MissingResourceException. To address this issue, the following methods can be used:

1. Ensure that the resource files are located in the correct directory within the classpath. You can use either absolute or relative paths to load the resource files.
2. Make sure the resource file names adhere to the requirements, which includes following guidelines such as using the correct international language and country codes.
3. Utilize a try-catch statement to catch the MissingResourceException and then handle the exception, such as displaying a prompt message or using a default value.
4. You can use the getKeys() method of ResourceBundle to retrieve all the keys in the resource file and then check if the desired resource exists.
5. You can use other methods to load resource files, such as using the PropertyResourceBundle class.

By following the above method, the issue of ResourceBundle failing to load resources can be resolved.