import java.util.Scanner;

public class OpgaverEftermiddag {

    public static void main(String[] args) {
        Scanner console = new Scanner(System.in);
        Opgave1.opgave1(console);
        Opgave2.opgave2(console);
        Opgave4.opgave4(console);
    }
}

class Opgave1 {

    public static void opgave1(Scanner console) {
        int running = 1;
        double sum = 0;
        double amount = 0;
        System.out.println(
            "Indtast tal, der skal tages gennemsnit fra. Indtast \"-1\" for at stoppe."
        );
        while (running == 1) {
            System.out.print("Indtast tal: ");
            double input = console.nextInt();
            if (input == -1) {
                break;
            }
            sum += input;
            amount++;
        }
        double average = sum / amount;
        System.out.println("Gennemsnittet blev " + average);
    }
}

class Opgave2 {

    public static void opgave2(Scanner console) {
        System.out.print("Indtast Brugernavn: ");
        String brugernavn = console.nextLine();
        if (brugernavn.equals("admin") && tjekAdgangskode(console)) {
            System.out.println("Adgang givet");
        } else {
            System.out.println("Adgang nægtet");
        }
    }

    public static boolean tjekAdgangskode(Scanner console) {
        System.out.print("Indtast adgangskode: ");
        String adgangskode = console.nextLine();

        return adgangskode.equals("wKzsP9A\\JWY!");
    }
}

class Opgave3 {
    // Laves i Python, se Opgaver.py-filen
}

class Opgave4 {

    public static void opgave4(Scanner console) {
        System.out.println("Tell me about the person applying for a loan.");
        int age = get_number(console, "What age is the person? ");
        int money = get_number(
            console,
            "How many dollars does the person have? "
        );

        boolean working_age = (age >= 18 && age < 70);
        boolean rich = (money >= 100000);

        if (working_age && rich) {
            System.out.println("Loan granted.");
        } else {
            System.out.println("Loan denied");
        }
    }

    public static int get_number(Scanner console, String prompt) {
        System.out.print(prompt);
        while (!console.hasNextInt()) {
            console.next();
            System.out.println("Not an integer; try again.");
            System.out.print(prompt);
        }
        return console.nextInt();
    }
}

class Opgave5 {
    // Laves i Python. Kig i Opgaver.py-filen
}