04. Train The Trainers

package _06_NestedLoops;

import java.util.Scanner;

public class TrainTheTrainers {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int gradersCount = Integer.parseInt(scanner.nextLine());

        double totalSum = 0.0;
        int totalCount = 0;

        String command = scanner.nextLine();
        while (!command.equals("Finish")) {
            String presentationName = command;
            double currentGradesSum = 0.0;

            for (int i = 1; i <= gradersCount; i++) {
                double grade = Double.parseDouble(scanner.nextLine());

                currentGradesSum += grade;
                totalSum += grade;
                totalCount++;
            }

            System.out.printf("%s - %.2f.%n", presentationName, currentGradesSum / gradersCount);
            command = scanner.nextLine();
        }

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