import javax.swing.JFrame;
import java.io.FileNotFoundException;
import java.io.File;
import java.io.PrintWriter;
import java.util.*;



public class StudentViewer
{
   public static void main(String[] args) throws FileNotFoundException, NoSuchElementException

   {
      File inputFile;
      File outputFile;

    if (args.length >= 1)
    {
        inputFile = new File(args[0]);
        outputFile = new File(args[1]);
        PrintWriter out = new PrintWriter(outputFile);
        int lineNumber = 1;

     Scanner in = new Scanner(inputFile);

     ArrayList<AppliedStudent> names = new ArrayList<AppliedStudent>();
     while(in.hasNext())
   try
   {
      String line = in.next();
      Scanner lineScanner = new Scanner(line);
      lineScanner.useDelimiter("\\s*,\\s*");




      String lastname = lineScanner.next();
      String firstname = lineScanner.next();
      double gpa = lineScanner.nextDouble();
      String major = lineScanner.next();



      if(major.equals("MAT"))
      {
      names.add(new AppliedMath(lastname, firstname, gpa, major));
      }
      if(major.equals("ACO"))
      {
      String concentration = lineScanner.next();

      if(concentration.equals("Database") || concentration.equals("Network") || concentration.equals("DigitalMedia"))
      names.add(new AppliedComputing(lastname, firstname, gpa, major, concentration));
      }

      else
      {
       out.println("No such element at line " + lineNumber);
      }


      lineNumber++ ;

    }
    catch (InputMismatchException exception)
        {
         out.println("GPA is not a number at line " + lineNumber);
        }

      Collections.sort(names);
      in.close();
      out.close();



      JFrame frame = new StudentFrame(names);
      frame.setTitle("Applied MNS Students");
      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      frame.setVisible(true);


       }
     else
     throw new FileNotFoundException("File Not Found");

   }

}