Java tutorial
import java.io.File; import java.nio.file.Paths; import java.util.Arrays; import java.util.stream.Stream; public class Main { public static void main(String[] args) { final String dir = "E:\\Java_Dev\\"; final File file = Paths.get(dir).toFile(); File[] files = file.listFiles(); Arrays.sort(files, (f1, f2) -> { if (f1.isDirectory() != f2.isDirectory()) { if (f1.isDirectory()) { return -1; } else { return 1; } } else { return f1.getName().toLowerCase().compareTo(f2.getName().toLowerCase()); } }); Stream.of(files).forEach(System.out::println); } }