Write a JAVA Program

Step I: Pizza Class

Create a class named Pizza that stores information about a single pizza. It should contain

the following:

Private instance variables

the size of the pizza (either small, medium, or large) (String)

the number of cheese toppings (integer)

the number of pepperoni toppings (interger)

the number of ham toppings (integer)

Default Constructor without parameters.

Constructor that set all of the instance variables.

Public methods to get and set the instance variables.

A public method named calcCost( ) 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

size, quantity of each topping, and the pizza cost as calculated by calcCost().

Write test code in your driver class to create several pizzas and output their descriptions.

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For example, a large pizza with one cheese, one pepperoni and two ham

toppings should cost a total of $22.

Step II: PizzaOrder Class

Create a PizzaOrder class that allows up to three pizzas to be saved in an order. Each

pizza saved should be a Pizza object as described in step I. It should contain the following:

Private instance variables

the number of the pizza

three Pizza objects: pizza1, pizza2, pizza3

Default Constructor without parameters, all instance variables could be set to 0

(for int) or null (for Pizza).

In addition to appropriate instance variables and constructors, add the following methods:

public void setNumPizzas(int numPizzas) sets the number of pizzas in the

order. numPizzas must be between 1 and 3.

public void setPizza1(Pizza pizza1) sets the first pizza in the order, please use

deep copy.

public void setPizza2(Pizza pizza2) sets the second pizza in the order, please

use deep copy.

public void setPizza3(Pizza pizza3) sets the third pizza in the order, please

use deep copy.

public double calcTotal() returns the total cost of the order.

Extend this class with the following methods and constructor:

public int getNumPizzas() returns the number of pizzas in the order.

public Pizza getPizza1() returns the first pizza in the order or null if pizza1 is

not set, dont need deep copy return.

public Pizza getPizza2() returns the second pizza in the order or null if pizza2

is not set, dont need deep copy return.

public Pizza getPizza3() returns the third pizza in the order or null if pizza3 is

not set, dont need deep copy return.

A copy constructor that takes another PizzaOrder object and makes an independent

copy (deep copy) of its pizzas. This might be useful if using an old order

as a starting point for a new order.

Step III: Write a driver class to test your Pizza class and

PizzaOrder class.

The setPizza2 and setPizza3 methods will be used only if there are two or three pizzas in

the order, respectively. Sample code illustrating the methods is shown below. Note that

some lines are incomplete. You must complete them as part of the Programming Project.

Another thing you need to notice is that changing the pizzas in the new order should not

change the pizzas in the original order.

Pizza pizza1 = // Code to create a large pizza, 1 cheese, 1 ham

Pizza pizza2 = // Code to create a medium pizza, 2 cheese, 2 pepperoni

//print pizza1 information

System.out.println("pizza1 information:" + pizza1.getDescription());

//print pizza2 information

System.out.println("pizza2 information:" + pizza2.getDescription());

System.out.println("Create a new Pizza order1:");

PizzaOrder order1 = // Code to create an order

order1.setNumPizzas(2); // 2 pizzas in the order

order1.setPizza1(pizza1); // Set first pizza

order1.setPizza2(pizza2); // Set second pizza

System.out.println("The order1 total is " + order.calcTotal()); // Should be 18+20 = 38

//Copy a new order

System.out.println("Copy a new Pizza order2:");

PizzaOrder order2 = new PizzaOrder(order1); // Use copy constructor

System.out.println("Change order2s toppings to 3:");

order2.getPizza1().setNumCheeseToppings(3); // Change toppings

pizza1.setNumCheeseToppings(10); //check privacy leak

pizza2.setNumCheeseToppings(10); //check privacy leak

System.out.println("The order1 total is " + order.calcTotal());// Should still be 38

System.out.println("The order2 total is " + order2.calcTotal());// Should be 22 + 20 = 42

Output should be similar like this:

pizza1 information: ======

Size: Large, Cheese Toppings: 1 Pepperoni Toppings: 0 Ham Toppings: 1. Cost: 18.0

pizza2 information: ======

Size: Medium, Cheese Toppings: 2 Pepperoni Toppings: 2 Ham Toppings: 0. Cost: 20.0

3Create a new Pizza order1: ======

The order1 total is 38.0

Copy a new Pizza order2: ======

Change order2s pizza1s cheese toppings to 3:

The order1 total is 38.0

The order2 total is 42.0

Step IV:

Write the program using Pizza.java, PizzaOrder.java and Driver.java