import java.io.*;
import java.util.*;

class StudentDatabase1
{
// Database implemented with unordered partly-filled array

 public static void main(String[] args)
 throws IOException
 {
  Table table = new Table1();
  BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
  BufferedReader file;
  Student student;
  String name;
  int mark;
  char ch;
  do {
      System.out.print(": ");
      StringTokenizer toks = new StringTokenizer(in.readLine());
      ch = toks.nextToken().charAt(0);
      switch(ch)   
         {
          case 'a' :
            table.add(new Student(in));
            break;
          case 'd' :
            name = toks.nextToken();
            if(!table.delete(name))
               System.out.println("No student named "+name);
            break;
          case 'f' :
            file = new BufferedReader(new FileReader(toks.nextToken()));
            try {
                 while(true)
                    table.add(new Student(file));
                }
            catch(Exception e) {}
            file.close();
            break;     
          case 'm':
            name = toks.nextToken();
            mark = Integer.parseInt(toks.nextToken());
            student = (Student) table.retrieve(name);
            if(student==null)
               System.out.println("No student named "+name);
            else
               student.addMark(mark);
            break;
          case 'p':
            table.print(System.out);
            break;
          case 'q':
            break;
          case 'r':
            name = toks.nextToken();
            student = (Student) table.retrieve(name);
            if(student==null)
               System.out.println("No student named "+name);
            else
               System.out.println(student);
            break;
          case 'w':
            name = toks.nextToken();
            PrintStream out = new PrintStream(new FileOutputStream(name));
            table.print(out);
            out.close();
            break;
          default:
            System.out.println(" a - add, d - delete, f - file read");
            System.out.println(" m - add mark, p - print, q - quit");
            System.out.println(" r - retrieve, w - file write ");
         }
     }
  while(ch!='q');
 }
}