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

class StudentRecord
{
   String ID;
   String name;
   String address;
   String level;
}

public class LookupStuFile2
{
   public static void main(String[] args) throws IOException
   {
      Scanner in = new Scanner(System.in);

      DataFile myFile = new DataFile("student-file");   // Open student-file

      StudentRecord x = new StudentRecord();            // Allocate buffer

      System.out.println("\nStudent file content: ");
      while ( true )
      {
         try
	 {
            x.ID = myFile.ReadString(6);
            x.name = myFile.ReadString(20);
            x.address = myFile.ReadString(20);
            x.level = myFile.ReadString(4);

            System.out.println("    " + x.ID + ", " + x.name + ", " 
				+ x.address + ", " + x.level);
         }
         catch ( IOException e )
         {
            System.out.println("\n");
	    break;   // Read error: no more data !!!
	 }
      }

      while ( true )
      {
         String s;

         System.out.print("Enter ID that you want to find: ");
	 s = in.nextLine();

         myFile.rewind();

         while ( true )
         {
            try
            {
               x.ID = myFile.ReadString(10);
               x.name = myFile.ReadString(30);
            x.address = myFile.ReadString(14);
               x.level = myFile.ReadString(4);
/* 
               System.out.println(x.ID.length() + " | " + s.length() );
               System.out.println(">> x.ID = `" + x.ID + "', "  +
					"s = `" + s + "'");
*/
	       if ( s.equals(x.ID) )
	       {
                  System.out.println(">> Found: " + x.ID + ", " 
			+ x.name + ", " + x.address + ", " + x.level + "\n");
		  break;
	       }
            }
            catch ( IOException e )
            {
               System.out.println("Not found !\n");
               break;   // Read error: no more data !!!
            }
         }
      }


   }
}