import java.util.Scanner;

public class NestedLoop
{
  public static void main(String[] args)
  {
    Scanner input = new Scanner(System.in);
    String studentName;
    int grade = 0;
    int count = 0, total = 0;
    System.out.print("Enter student name (\"exit\" to leave): ");
    studentName = input.nextLine();
    
    while (!studentName.equals("exit"))
    {
      // Reset count and total for this student's grades
      count = 0;
      total = 0; 
      // Prompt for first grade
      System.out.print("Enter a grade (999 to leave): ");
      grade = input.nextInt();
      while (grade != 999)
      {
        count++;
        total = total + grade;
        System.out.print("Enter a grade (999 to leave): ");
        grade = input.nextInt();
      }
      System.out.println("Student " + studentName + " has an average grade of: " +
                         total/count);
      input.nextLine();
      //Prompt for student name
      System.out.print("Enter student name (\"exit\" to leave): ");
      studentName = input.nextLine();
      
    }
      
  }
}