Java Coding Problems

Deleting a folder

Before attempting to delete a folder, we must delete all the files from it. This statement is very important since it doesn't allow us to simply call the delete()/deleteIfExists() methods for a folder that contains files. An elegant solution to this problem relies on a FileVisitor implementation that starts from the following stub:

public class DeleteFileVisitor implements FileVisitor {  ...  private static boolean delete(Path file) throws IOException {    return Files.deleteIfExists(file);  }}

Let's take a look at the main checkpoints and the implementation of deleting a folder:

• visitFile() is the perfect place for deleting each file from the given folder or subfolder (if a file cannot be deleted, then we simply pass it to the ...