Test Scores and Grade

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);

        System.out.println("Please enter your scores from three exams");
        int score1 = scanner.nextInt();
        int score2 = scanner.nextInt();
        int score3 = scanner.nextInt();

        int average = (score1 + score2 + score3) / 3;

        if (average >= 90)
        {
            System.out.println("Your score: A");
        }
        else if (average >= 80 && average <= 89)
        {
            System.out.println("Your score: B");
        }
        else if (average >= 70 && average <= 79)
        {
            System.out.println("Your score: C");
        }
        else if (average >= 60 && average <= 69)
        {
            System.out.println("Your score: D");
        }
        else
        {
            System.out.println("Your score: D");
        }
    }
}