Question

Create a class named Pizzawith the following data fields:

• description - of type String
• price - of type double

The description stores the type of pizza (such as sausage and onion). Include a constructor that requires arguments for both fields and a method named display to display the data. For example, if the description is 'sausage and onion' and the price is '14.99', the display method should output:

sausage and onion pizza Price: $14.99

Create a subclass named DeliveryPizza that inherits from Pizza but adds the following data fields:

• deliveryFee - of type double
• address - of type String

The description, price, and delivery address are required as arguments to the constructor. The delivery fee is $3 if the pizza ordered costs more than $15; otherwise it is $5.

Answer 1

class Pizza {

    protected String description;
    protected double price;

    public Pizza(String description, double price) {
        this.description = description;
        this.price = price;
    }

    public void display() {
        System.out.printf("%s pizza Price: $%.2f\n", description, price);
    }
}

class DeliveryPizza extends Pizza {

    private double deliveryFee;
    private String address;

    public DeliveryPizza(String description, double price, String address) {
        super(description, price);
        this.address = address;
        deliveryFee = 3;
        if (price > 15) deliveryFee = 5;
    }

    public void display() {
        System.out.printf("%s pizza Price: $%.2f with additional delivery fee of $%.2f will be delivered to %s\n", description, price, deliveryFee, address);
    }

}

class DemoPizzas {

    public static void main(String[] args) {
        DeliveryPizza pizza = new DeliveryPizza("sausage and onion", 14.99, "address 1");
        pizza.display();
    }
}