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Basic I/O
Deleting a File or Directory
You can delete files, directories or links.
With symbolic links, the link is deleted and not the
target of the link.
With directories, the directory must be empty, or the deletion fails.
The Files class provides two deletion methods.
The
delete(Path) method deletes the file or throws an exception if the deletion fails.
For example, if the file does not exist a
NoSuchFileException is thrown.
You can catch the exception to determine why the delete failed
as follows:
try {
Files.delete(path);
} catch (NoSuchFileException x) {
System.err.format("%s: no such file or directory%n", path);
} catch (DirectoryNotEmptyException x) {
System.err.format("%s not empty%n", path);
} catch (IOException x) {
//File permission problems are caught here.
System.err.println(x);
}
The
deleteIfExists(Path) method also deletes the file, but if the file does not exist,
no exception is thrown.
Failing silently is useful when
you have multiple threads deleting files and you don't want to throw
an exception just because one thread did so first.
