// Grade Calculator
import java.util.Map;
import java.util.Scanner;

public class aone {
    public static void main(String[] args)
    {
        var hurdles = Map.of(
            "quiz", 10, "mid-semester", 20, "project", 40, "finals", 30);

        double score = 0;
        var stdin = new Scanner(System.in);
        for (var hurdle : hurdles.entrySet()) {
            // no orderly iteration because it was not a requirement
            System.out.printf("Enter your %s score:\t", hurdle.getKey());
            score += stdin.nextDouble() * hurdles.get(hurdle.getKey()) / 100;
        }

        assert score <= 100 || score >= 0 : "Score out of range.";

        System.out.printf("Your score is: %f\n", score);
        System.out.printf("Your grade is:\t%c\n",
            score >= 90 ? 'A'
                        : score >= 80
                          ? 'B'
                          : score >= 70
                              ? 'C'
                              : score >= 60
                                  ? 'D'
                                  : 'F'
        );
    }
}

// BMI Calculator
import java.util.Scanner;

public class atwo {

    public static void main(String[] args)
    {
        var stdin = new Scanner(System.in);
        System.out.print("Enter your First name:\t");
        stdin.nextLine(); // saving name is pointless because it's not useful later
        System.out.print("Enter your second name:\t");
        stdin.nextLine();

        boolean male = true;
        double height, weight;

        System.out.print("Enter your height:\t");
        height = stdin.nextDouble();

        System.out.print("Enter your weight:\t");
        weight = stdin.nextDouble();

        boolean loop = true; // compiler isn't smart enough
        do {
            System.out.print("Enter your gender:[m/f]\t");
            switch (stdin.next().charAt(0)) {
            case 'M':
            case 'm':
                male = true;
                loop = false;
                break;
            case 'F':
            case 'f':
                male = false;
                loop = false;
                break;
            default:
                System.out.println("Could not parse gender, try again.");
            }
        } while (loop);

        var bmi = weight / (height * height);
        System.out.printf("You are \"%s\"\n", male ? "Male" : "Female", bmi,
            bmi >= 40
                ? "Morbidly obese"
                : bmi >= 30
                    ? "Obese"
                    : bmi >= 25
                        ? "Overweight"
                        : male
                            ? bmi >= 20
                                ? "Acceptable"
                                : "Underweight"
                            : bmi >= 19
                                ? "Acceptable"
                                : "Underweight");
    }
}