kljasdka

import java.util.Scanner;

public class Project2 {

    public static void main(String[] args) {
 Scanner s = new Scanner(System.in);
		double average = 0;
		int exams = 0;
		double total = 0;
		double cScore = 0;
		System.out.println("Enter number of exams");
		exams = s.nextInt();
		System.out.println("Enter scores");
		int pos = 0;
		while(pos == 0)
		{
			for(int i=1;i<=exams;i++)
			{
				if((cScore = s.nextDouble()) < 0)
				{
					//pos++;
					System.out.println("negative value: " + cScore);
				}
				else{
				total+=cScore;
				pos++;
				System.out.println("counter is at: " + i + " current total: " + total);
				}
			}
			System.out.println("avg is: " + (total/exams) + " total is " + total);
			if(pos!=exams)
			{ System.out.println("error, reenter");
			pos = 0;
			total = 0;
			}
			else if(pos==exams)
			{ System.out.println("cool"); }
		}

		/*
		for(int i=1;i<=exams;i++)
		{
			System.out.println("this is next double " + s.nextDouble());
			if(s.nextDouble() < 0)
			{
				i = 1;
				System.out.println("Error, reenter");
			}
			else
			{
				total += s.nextDouble();
				System.out.println("this is total " + total);
			}
			System.out.println("final total: " + total);
		}
		System.out.println((total/exams));

/*
        //beginning of program to set the number of students and exams
        System.out.print("Welcome to GradeCalculator!");
        System.out.println();
        System.out.print("Please enter the number of students: ");
        int students = s.nextInt();
        System.out.print("Please enter the number of exams:    ");
        int exams = s.nextInt();

// defining class statistic variables and their starting values
        double classavg = 0;
        double classlow = 100;
        double classhigh = 0;

        for (int i = 1; i <= students; i++) {
            System.out.println();
            System.out.println("--------------------------------------");
            System.out.print("Enter student " + i + "'s name : ");
            //scanner for students' names
            String fname = s.next();
            String lname = s.next();
            System.out.print("Enter exam scores             : ");
            //setting starting values for individual student variables
            double average = 0;
            double lowest = 100;
            double highest = 0;

            //loop for statistics begins
            for (int e = 1; e <= exams; e++) {
                double score = s.nextDouble();
                //setting requiremnts for correct input values
                if (score < 0) {
                    System.out.print("Please re-enter only the invalid exam score(s): ");
                    //invalid scores are wiped and re-enterable
                    s.nextLine();
                    score = s.nextDouble();
                }
                //finding the average
                average += (score / exams);

                //finding the lowest score
                if (score < lowest) {
                    lowest = score;
                }

                //finding the highest score
                if (score > highest) {
                    highest = score;
                }

            } //displaying grade information
            System.out.println();
            System.out.println("Grade statistics for " + fname + " " + lname + ":");
            System.out.println("Lowest Score  : " + lowest);
            System.out.println("Highest Score : " + highest);
            System.out.println("Average       : " + average);

            // deterimining grade
            if (average > 0 & average < 60) {
                System.out.println("Letter Grade  : F");
                System.out.println(fname + " " + lname + " earns no stars.");
            } else if (average >= 60 & average < 70) {
                System.out.println("Letter Grade  : D");
                System.out.println(fname + " " + lname + " earns 1 star! *");
            } else if (average >= 70 & average < 80) {
                System.out.println("Letter Grade  : C");
                System.out.println(fname + " " + lname + " earns 2 stars! **");
            } else if (average >= 80 & average < 90) {
                System.out.println("Letter Grade  : B");
                System.out.println(fname + " " + lname + " earns 3 stars! ***");
            } else if (average >= 90) {
                System.out.println("Letter Grade  : A");
                System.out.println(fname + " " + lname + " earns 4 stars! ****");
            }
            //finding class statistics
            classavg += (average / students);
            if (average < classlow) {
                classlow = average;
            }
            if (average > classhigh) {
                classhigh = average;
            }
            //where the loop restarts for the next student
        }
        //main loop is over and class stats are displayed
        System.out.println("--------------------------------------");
        System.out.println("Class Statistics:");
        System.out.println("   Class Average  : " + classavg);
        System.out.println("   Lowest Average : " + classlow);
        System.out.println("   Highest Average: " + classhigh);
        System.out.println();
        System.out.print("Done. Goodbye!");
        */
    }
}