Deepest file or directory

Main.java

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.*;

class Main {
    public static void main(String[] args) throws IOException {
        Path longestPath = Files.walk(Paths.get("D:\\Downloads\\basedir"))
                .max(Comparator.comparingInt(Path::getNameCount)).orElseThrow(NullPointerException::new);
        System.out.println(longestPath.getFileName() + " " + longestPath.getNameCount());
    }
}