Read only visibles directory´s file names

Question

Im trying to read the filenames of a folder an save them in an array list, but i get invisble files names in my array that i dont want(actually i want only to saves the .txt fil

Answer 1

Use java.nio.file. Using Java 8:

final Path dir = Paths.get("/Users/MaxRuizTagle/Desktop/lvl/");

final List<String> textFiles = Files.list(dir)
    .filter(path -> !Files.isHidden(path))
    .map(path -> path.getFileName().toString())
    .filter(s -> s.endsWith(".txt"))
    .collect(Collectors.toList());

If Java 7, do the equivalent with Files.newDirectoryStream():

final Path dir = Paths.get("/Users/MaxRuizTagle/Desktop/lvl/");

final DirectoryStream<Path> dirstream
    = Files.newDirectoryStream(dir, "*.txt");

final List<String> textFiles = new ArrayList<>();

for (final Path entry: dirstream)
    if (!Files.isHidden(entry))
        textFiles.add(entry.getFileName().toString());