grades.java

import java.util.Scanner;

public class grades {
    public static void main (String[] args) {
        Scanner scanner = new Scanner(System.in);

        System.out.println("Give points[0-100]");
        int points = Integer.valueOf(scanner.nextLine());

        if (points < 0) {
            System.out.println("Grade: impossible!");
        } 
        else if (points <= 49){
            System.out.println("Grade: failed");
        }
        else if (points >=50 && points <= 59)  {
            System.out.println("Grade: 1");

        }
        else if (points >= 60 && points <= 69) {
            System.out.println("Grade: 2");

        }
        else if (points >= 70 && points <= 79) {
            System.out.println("Grade: 3");
        }
        else if (points >= 80 && points <= 89) {
            System.out.println("Grade: 4");
        }
        else if (points >= 90 && points <= 100) {
            System.out.println("Grade: 5");
        }
        else if (points > 100) {
            System.out.println("Grade; incredible!");
        }
    }
    
}