02. Exam Preparation

package whileLoop;

import java.util.Scanner;

public class P02ExamPreparation {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        int maxPoorGrade = Integer.parseInt(scanner.nextLine());

        int countProblems = 0;
        double sumGrade = 0;
        String lastProblem = "";
        int countPoorGrades = 0;
        String command = scanner.nextLine();
        while (!command.equals("Enough")) {
            String problemName = command;
            int grade = Integer.parseInt(scanner.nextLine());

            if (grade <= 4) {
                countPoorGrades++;
            }
            if (countPoorGrades >= maxPoorGrade) {
                break;
            }

            countProblems++;
            sumGrade = sumGrade + grade;
            lastProblem = problemName;

            command = scanner.nextLine();
        }

        if (countPoorGrades >= maxPoorGrade) {
            System.out.printf("You need a break, %d poor grades.", countPoorGrades);
        } else {
            System.out.printf("Average score: %.2f%n", sumGrade / countProblems);
            System.out.printf("Number of problems: %d%n", countProblems);
            System.out.printf("Last problem: %s%n", lastProblem);
        }
    }
}