Method clean

mother.java:31–51

(String goal)

    }

    public static void clean(String goal) {
        try {
            Files.walkFileTree(Paths.get(goal), new SimpleFileVisitor<>() {
                @Override
                public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
                    Files.delete(file);
                    return FileVisitResult.CONTINUE;
                }

                @Override
                public FileVisitResult postVisitDirectory(Path dir, IOException exc) throws IOException {
                    if (exc == null) {
                        Files.delete(dir);
                    }
                    return FileVisitResult.CONTINUE;
                }
            });
        } catch (Exception ignored) {

        }
    }
}