Score

HelloWorld.java

package example;
import java.util.Scanner;

public class HelloWorld {
    public static char getScoreLabel(float score) {
        if (score < 0 || score > 10) {
            return '-';
        }

        if (score >= 8.5) {
            return 'A';
        }

        if (score >= 7.0) {
            return 'B';
        }

        if (score >= 5.0) {
            return 'C';
        }

        if (score >= 3.0) {
            return 'D';
        }

        return 'E';
    }

    public static void main(String[] args) {
        float score;

        Scanner input = new Scanner(System.in);

        System.out.print("Score: ");
        score = input.nextFloat();

        System.out.println("Result: " + getScoreLabel(score));
    }
}