// The do - while loop example: find the avarage and the highest 
// grades given a series of scores

import java.util.Scanner;

class LoopExample3A {

   public static void main (String[] args) {
 
      Scanner scan = new Scanner(System.in);
      int grade, sum = 0, number = 0;
      int max = -1;


      do {

         System.out.print ("Enter grade (-1, if done): ");
         System.out.flush ();
         grade = scan.nextInt();
         if (grade != -1) {
            number = number + 1;
            if (max < grade)
               max = grade;
            sum = sum + grade;
         }
         
      } while (grade != -1);
      
   if (number == 0)
     System.out.println ("No grades enterred.");
   else {
     System.out.println ("The avarage grade is " + (sum / number));
     System.out.println ("The highest grade is " + max);
     }
   }
}