Proverka za dali e direktorium

import java.io.*;
import java.io.File;

public class Main {
    public static void main(String[] args) throws IOException {
        File file = new File(".");
        File[] lista=file.listFiles();
        for(int i=0;i<lista.length;i++)
        {
            System.out.println(lista[i].getName() +" " + lista[i].isDirectory());
        }

    }
}