MarksToGrade.java

import java.util.Scanner;
public class MarksToGrade {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.println("Enter java programming marks");
        double marks = in.nextDouble();
        if (marks >= 90) {
            System.out.println("A");
        } else if (marks >= 85 && marks < 90) {
            System.out.println("A-");
        } else if (marks >= 80 && marks < 85) {
            System.out.println("B+");
        } else if (marks >= 75 && marks < 80) {
            System.out.println("B");
        } else if (marks >= 70 && marks < 75) {
            System.out.println("B-");
        } else if (marks >= 65 && marks < 70) {
            System.out.println("C+");
        } else if (marks >= 60 && marks < 65) {
            System.out.println("C");
        } else if (marks >= 55 && marks < 60) {
            System.out.println("c-");
        } else if (marks >= 50 && marks < 55) {
            System.out.println("D+");
        } else if (marks >= 45 && marks < 50) {
            System.out.println("D");
        } else {
            System.out.println("F");
        }
        in.close();
    }
}