StudentGradeCalculator.java

import java.util.Scanner;

public class StudentGradeCalculator {

    @SuppressWarnings("ConvertToTryWithResources")
    public static void main(String[] args) {
        Scanner s = new Scanner(System.in);

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

        // Array to store marks for each subject
        int[] marks = new int[numSubjects];
        int totalMarks = 0;

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

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

        // Determine grade
        char grade;
        if (averagePercentage >= 90) {
            grade = 'A';
        } else if (averagePercentage >= 80) {
            grade = 'B';
        } else if (averagePercentage >= 70) {
            grade = 'C';
        } else if (averagePercentage >= 60) {
            grade = 'D';
        } else {
            grade = 'F';
        }

        // Display results
        System.out.println("\nResults:");
        System.out.println("Total Marks: " + totalMarks);
        System.out.println("Average Percentage: " + averagePercentage + "%");
        System.out.println("Grade: " + grade);

        s.close();
    }
}