STUDENTGRADECALCULATOR.java

import java.util.Scanner;
public class STUDENTGRADECALCULATOR
{
    public static void main(String[] args)
    {
        Scanner scanner = new Scanner(System.in);
        System.out.println("Enter the number of subjects:");
        int numSubjects = scanner.nextInt();
        int totalMarks = 0;
        for (int i = 1; i <= numSubjects; i++)
        {
            System.out.println("Enter marks for Subject " + i + ":");
            int subjectMarks = scanner.nextInt();
            if (subjectMarks < 0 || subjectMarks > 100)
            {
                System.out.println("Invalid marks! Marks should be between 0 and 100.");
                return;
            }
            totalMarks += subjectMarks;
        }
        double averagePercentage = (double) totalMarks / numSubjects;
        System.out.println("Total Marks: " + totalMarks);
        System.out.println("Average Percentage: " + averagePercentage + "%");
        String grade = calculateGrade(averagePercentage);
        System.out.println("Grade: " + grade);
        scanner.close();
    }

    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
        {
            return "F";
        }
    }
}