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

    System.out.println("Enter the number of subjects:");
    int numSubjects = scanner.nextInt();
    scanner.nextLine(); // Consume the newline character

    String[] subjectNames = new String[numSubjects];
    int[] marks = new int[numSubjects];

    for (int i = 0; i < numSubjects; i++) {
        System.out.println("Enter the name of subject " + (i + 1) + ":");
        subjectNames[i] = scanner.nextLine();

        System.out.println("Enter the marks of " + subjectNames[i] + ":");
        marks[i] = scanner.nextInt();
        scanner.nextLine(); // Consume the newline character
    }

    int totalMarks = calculateTotalMarks(marks);
    double averagePercentage = calculateAveragePercentage(totalMarks, numSubjects);
    String grade = calculateGrade(averagePercentage);

    displayResults(totalMarks, averagePercentage, grade, subjectNames, marks);
}

private static int calculateTotalMarks(int[] marks) {
    int totalMarks = 0;
    for (int mark : marks) {
        totalMarks += mark;
    }
    return totalMarks;
}

private static double calculateAveragePercentage(int totalMarks, int numSubjects) {
    return (double) totalMarks / numSubjects;
}

private static String calculateGrade(double averagePercentage) {
    if (averagePercentage >= 90) {
        return "A";
    } else if (averagePercentage >= 80) {
        return "B";
    } else if (averagePercentage >= 70) {
        return "C";
    } else if (averagePercentage >= 60) {
        return "D";
    } else if (averagePercentage >= 40) {
        return "E";
    } else {
        return "F";
    }
}

private static void displayResults(int totalMarks, double averagePercentage, String grade, String[] subjectNames, int[] marks) {
    System.out.println("Total Marks: " + totalMarks);
    System.out.println("Average Percentage: " + averagePercentage);
    System.out.println("Grade: " + grade);
    System.out.println("Subject-wise Marks:");
    for (int i = 0; i < subjectNames.length; i++) {
        System.out.println(subjectNames[i] + ": " + marks[i]);
    }
}

}