StudentGradeCalculator.java

import java.util.Scanner;

public class StudentGradeCalculator {

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

        // Input: Number of subjects
        System.out.print("Enter the number of subjects: ");
        int numSubjects = scanner.nextInt();

        // Input: Marks for each subject
        int totalMarks = 0;
        for (int i = 1; i <= numSubjects; i++) {
            System.out.print("Enter marks for subject " + i + " (out of 100): ");
            int marks = scanner.nextInt();
            totalMarks += marks;
        }

        // Calculate average percentage
        double averagePercentage = (totalMarks / (double) (numSubjects * 100)) * 100;

        // Grade Calculation based on average percentage
        String grade = "";
        if (averagePercentage >= 90) {
            grade = "A+";
        } else if (averagePercentage >= 80) {
            grade = "A";
        } else if (averagePercentage >= 70) {
            grade = "B+";
        } else if (averagePercentage >= 60) {
            grade = "B";
        } else if (averagePercentage >= 50) {
            grade = "C+";
        } else if (averagePercentage >= 40) {
            grade = "C";
        } else {
            grade = "F";
        }

        // Display Results
        System.out.println("\nTotal Marks: " + totalMarks + " out of " + (numSubjects * 100));
        System.out.println("Average Percentage: " + averagePercentage + "%");
        System.out.println("Grade: " + grade);

        scanner.close();
    }
}