// **************************************************************************
// GradesCalculator finds the highest grade and calculates the average grade
// based on user input. 
//
// Kelli Wiseth
// 29-June-2004
// Platform: 	Wintel [Windows 2000]
// JDK version:	JDK 1.4.1
//
//******************************************************************************

import java.io.*;

class GradesCalculator {
        
    public static void main (String args[]) throws IOException
    {
       
    int grade;
    int count=0;
    int average;
    int max;
    int total=0;

    //get the first grade, set max to the first grade before entering the loop    
    System.out.print("Please enter the first grade [enter -1 to quit the program]:   ");
    System.out.flush();
    BufferedReader stdin = new BufferedReader(new InputStreamReader(System.in));
    grade = Integer.parseInt(stdin.readLine());
    total = grade;    
    max = grade;

    while (grade >= 0)
        { 
        count++;
        total = total+grade;
        System.out.print("Enter the next grade [enter -1 when finished]:   ");
        System.out.flush();
        grade = Integer.parseInt(stdin.readLine());
        if (grade > max)
            max=grade;
        }

            
    if (count==0)
        System.out.println("No valid grades were entered");
    else
        {
        System.out.println();
        System.out.println();
        System.out.println("-----------------------------------------------");
        System.out.println("Average Grade and Maximum Grade for " + count + " grades entered:");
        System.out.println("-----------------------------------------------");
        System.out.println();
        System.out.println("Total grades:   " + count);
        System.out.println("Average grade:  " + total/count);
        System.out.println("Highest grade:  " + max);
        System.out.println();
        System.out.println("------------------------------------------------");
        }

    }//main method

}//GradesCalculator class