static Scanner myi = new Scanner(System.in);

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        System.out.println("CHOOSE THE NUMBER OF WHAT YOU WOULD LIKE:");
        menu();

    }

    private static void menu() {

        System.out.println("1 = area of trapezium");
        System.out.println("2 = area of cylinder");
        System.out.println("3 = volume of cylinder");
        System.out.println("4 = surface area of sphere");
        System.out.println("5 = volume of cone");
        System.out.println("-----------------");
        int menu = myi.nextInt();
        if (menu < 1) {
            System.out.println("------------");
            System.out.println("Cannot process");
            System.out.println("------------");

        }
        if (menu > 5) {
            System.out.println("------------");
            System.out.println("Cannot process");
            System.out.println("------------");



        }
        if (menu == 1) {
            ATrapezium();

        }
        if (menu == 2) {
            Acylinder();

        }
        if (menu == 3) {
            Vcylinder();

        }
        if (menu == 4) {
            SAsphere();
        }
        if (menu == 5) {
            Vcone();

        }
    }

    private static void ATrapezium() {
        System.out.println("Area of trapezium");
        System.out.println("----------------");
        System.out.println("Enter side one");
        double sideone = myi.nextDouble();
        System.out.println("Enter side two");
        double sidetwo = myi.nextDouble();
        System.out.println("Enter height");
        double height = myi.nextDouble();
        System.out.println(((sideone + sidetwo) * height) / 2);

    }

    private static void Acylinder() {
        System.out.println("Area of a cylinder");
        System.out.println("---------------");
        double pi = 3.14;
        System.out.println("Enter a radius");
        double radius = myi.nextDouble();
        double circle = pi * radius * radius;
        System.out.println("Enter height");
        double height = myi.nextDouble();
        double total = (2 * pi * radius * height) + (2 * pi * radius * radius);
        System.out.println(total);

    }

    private static void Vcylinder() {
        System.out.println("Volume of a Cylinder");
        System.out.println("---------------");
        double pi = 3.14;
        System.out.println("Enter a radius");
        double radius = myi.nextDouble();
        double circle = pi * radius * radius;
        System.out.println("Enter height");
        double height = myi.nextDouble();
        double total = pi * radius * radius * height;
        System.out.println(total);
    }

    private static void SAsphere() {
        System.out.println("Surface area of Shere");
        System.out.println("----------");
        double pi = 3.14;
        System.out.println("Enter radius");
        double radius = myi.nextDouble();
        double total = 4 * pi * radius * radius;
        System.out.println(total);

    }

    private static void Vcone() {
        System.out.println("Volume of a cone");
        System.out.println("-------------");
        double pi = 3.14;
        System.out.println("Enter radius");
        double radius = myi.nextDouble();
        System.out.println("Enter height");
        double height = myi.nextDouble();
        double total = (height / 3) * radius * radius * pi;
        System.out.println(total);

    }

}