Java DirectoryStream.Filter create

import java.io.IOException;
import java.nio.file.DirectoryIteratorException;
import java.nio.file.DirectoryStream;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;

public class Main {
   public static void main(String[] args) {
      DirectoryStream.Filter<Path> filter = new DirectoryStream.Filter<Path>() {
         public boolean accept(Path file) throws IOException {
            return (Files.isHidden(file));
         }/*from   w ww.ja va  2 s  .c om*/
      };

      Path directory = Paths.get("C:/Windows");
      try (DirectoryStream<Path> directoryStream = Files.newDirectoryStream(directory, filter)) {
         for (Path file : directoryStream) {
            System.out.println(file.getFileName());
         }
      } catch (IOException | DirectoryIteratorException ex) {
         ex.printStackTrace();
      }

   }
}