04. Train The Trainers

package L06_NestedLoops;

import java.util.Scanner;

public class P04_TrainTheTrainers {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);


        int countPeople = Integer.parseInt(scanner.nextLine());
        String input = scanner.nextLine();

        int countGrades = 0;
        double sumAllGrades = 0;

        //while -> докато не получим Finish
        while (!input.equals("Finish")){

            double sumGradesPerPresentation = 0;
            // for -> прочитаме всяка една оценка
            for (int i = 1; i <= countPeople ; i++) {
                double currentGrade = Double.parseDouble(scanner.nextLine());
                sumGradesPerPresentation += currentGrade;

                //прибяваме  currentGrade към sumAllGrades
                sumAllGrades += currentGrade;

                //увеличаваме броката на оценките
                countGrades++;

            }
            //изчисляваме средната оценка за презентация
            double averageGradePerPresentation = sumGradesPerPresentation / countPeople;



            System.out.printf("%s - %.2f.%n", input, averageGradePerPresentation);


            input = scanner.nextLine();
        }


        //изчисляваме средната оценка за вдички студенти
        double averageStudentsGrade = sumAllGrades / countGrades;

        System.out.printf("Student's final assessment is %.2f.", averageStudentsGrade);
    }
}