import javax.swing.*;
import java.io.*;
public class FileIO{
public static void main (String args [])throws IOException{

String input = JOptionPane.showInputDialog("Enter FileName: ");
File x = new File(input);

File f = new File ("d:\aa\bb\");
f.mkdirs();


FileWriter text = new FileWriter (f + "\grades.txt");
text.write("90");
text.write("91");
text.write("92");
text.write("93");
text.write("94");

text.close();

   if (f.exists()){
       System.out.println(f.getPath() + " exist");
   } else {
       System.out.println(f.getPath() + " does not exist");
   }




      /* int sum = 0, ctr=0;

        while(val != null){
        ctr++;
        sum += Integer.parseInt(val);
        val = x.readLine();
        }
        System.out.println("Ave = " + sum/ctr);

        f.close();*/




}
}