grade.java

import java.util.Scanner;
public class grade{
    public static String score(int mark){
        if (mark == 100 && mark >= 70){
            return "GRADE A";
        }
        else if (mark >= 60 && mark < 70){
            return "GRADE B";
        }
        else if (mark >= 50 && mark < 60){
            return "GRADE C";
        }
        else if (mark >= 45 && mark <50){
            return "GRADE D";
        }
        else if (mark >= 40 && mark < 45){
            return "GRADE E";
        }
        else {
            return "GRADE F";
        }
    }
    public static void main(String[] args){
        Scanner scan = new Scanner(System.in);
        System.out.print("Enter your mark:");
        int mark = scan.nextInt();
        String Mark = grade.score(mark);
        System.out.print(Mark);
    }
}