Question

Create a class named Pizza that scores information about a single pizza. It
should contain the following:
 Private instance variable to store the size of the pizza (either small,
medium, or larger), the number of cheese toppings, the number of
pepperoni toppings, and the number of ham toppings.
 Constructor(s) that set all of the instance variables.
 Public methods to get and set the instance variables.
 A public method named calsCost( ) that returns a double that is the cost
of the pizza.
Pizza cost is determined by:
Small: $10 + $2 per topping
Medium: $12 + $2 per topping
Large: $14 + $2 per topping.
 A public method named getDescription( ) that returns a String
containing the pizza cost as calculated by calsCost ( ).

Write test code to create several pizzas and output their descriptions. For
example, a large pizza with one cheese, one pepperoni and two ham toppings
should cost a total of $22.

Answer 1

class Pizza {
    private String size;
    private int numCheeseToppings;
    private int numPepperoniToppings;
    private int numHamToppings;

    public Pizza(String size, int numCheeseToppings, int numPepperoniToppings, int numHamToppings) {
        this.size = size;
        this.numCheeseToppings = numCheeseToppings;
        this.numPepperoniToppings = numPepperoniToppings;
        this.numHamToppings = numHamToppings;
    }

    public String getSize() {
        return size;
    }

    public void setSize(String size) {
        this.size = size;
    }

    public int getNumCheeseToppings() {
        return numCheeseToppings;
    }

    public void setNumCheeseToppings(int numCheeseToppings) {
        this.numCheeseToppings = numCheeseToppings;
    }

    public int getNumPepperoniToppings() {
        return numPepperoniToppings;
    }

    public void setNumPepperoniToppings(int numPepperoniToppings) {
        this.numPepperoniToppings = numPepperoniToppings;
    }

    public int getNumHamToppings() {
        return numHamToppings;
    }

    public void setNumHamToppings(int numHamToppings) {
        this.numHamToppings = numHamToppings;
    }

    public double calcCost() {
        double cost = 14;
        if (size.equalsIgnoreCase("small")) {
            cost = 10;
        } else if (size.equalsIgnoreCase("medium")) {
            cost = 12;
        }
        cost += 2 * numCheeseToppings;
        cost += 2 * numHamToppings;
        cost += 2 * numPepperoniToppings;
        return cost;
    }

    public String getDescription() {
        String str = "Size: " + size;
        str += "\nNumber of cheese toppings: " + numCheeseToppings;
        str += "\nNumber of pepperoni toppings: " + numPepperoniToppings;
        str += "\nNumber of ham toppings: " + numHamToppings;
        str += String.format("\nTotal cost: $%.2f\n", calcCost());
        return str;
    }
}

class PizzaTest {

    public static void main(String[] args) {
        Pizza p1 = new Pizza("large", 1, 1, 2);
        Pizza p2 = new Pizza("small", 2, 0, 2);
        Pizza p3 = new Pizza("medium", 3, 1, 1);
        Pizza p4 = new Pizza("large", 1, 0, 0);
        Pizza p5 = new Pizza("medium", 1, 3, 1);

        System.out.println(p1.getDescription() + "\n");
        System.out.println(p2.getDescription() + "\n");
        System.out.println(p3.getDescription() + "\n");
        System.out.println(p4.getDescription() + "\n");
        System.out.println(p5.getDescription() + "\n");
    }
}