StudentGradeCalculator

package csea;

import java.util.Scanner;

public class Studentcalculator { 
	 public static double calculateAverage(double[] scores) {
	        double sum = 0;
	        for (double score : scores) {
	            sum += score;
	        }
	        return sum / scores.length;
	    }
	 public static String determinegrade(double average)
	 {
		 if (average >= 90) {
	            return "A";
	        } else if (average >= 80) {
	            return "B";
	        } else if (average >= 70) {
	            return "C";
	        } else if (average >= 60) {
	            return "D";
	        } else {
	            return "F";
	        }
		 
	 }
   	public static void main(String[] args) {
		 Studentcalculator s1=new Studentcalculator();
		Scanner sc=new Scanner(System.in);
		System.out.println("enter the name of the student");
		String name=sc.nextLine();
		System.out.println("enter the total number of subjects");
		int n=sc.nextInt();
		double ar[] =new double[n];
		System.out.println("enter the marks of each subject");
		for(int i=0;i<n;i++)
		{
			ar[i]=sc.nextInt();
			
		}
		double average=s1.calculateAverage(ar);
		String grade = s1.determinegrade(average);
		 System.out.println("Average score: " + average);
	       System.out.println("Grade: " + grade);

	        sc.close();
	}

}