import java.io.File;
import java.io.IOException;

public class Main {
  public static void main(String[] args) throws IOException {
    File myFolder = new File("myFolder");
    myFolder.mkdir();
    new File("myFolder/filename.txt").createNewFile();
    File[] files = myFolder.listFiles();
    for (File f : files) {
      System.out.println(f.getName() + " is a file: " + f.isFile());
    }
  }
}