CS 342 Homework #2  Build A Burger

CS 342 Homework #2 
Build A Burger

Description:
I hate it when you go to order a cheeseburger and all the good toppings cost extra!
However, it can be a good example of the Decorator Design Pattern. Using the
Decorator Design pattern, create a java program that will allow the user to create a
cheeseburger with extra toppings and print out the order and total cost. The burger in
question could be made of ground beef, fish or plant based like the very delicious
Beyond Burger. In the next homework, you will be able to chose the type of burger using
the Factory Design Pattern. But for now, you may assume it is of any type you choose.
Implementation Details:
You will create a maven project, including unit tests, using the template provided for this
assignment. Each class and interface will be in a separate file. You will create the
interface, base class, abstract decorator class and five decorator classes. The interface
will be named Burger and should contain a single abstract method: public double
makeBurger().
Your base class should be called BasicBurger.
The names of the five decorator classes are: GrilledOnions, FriedEgg, Bacon, Avocado
and RoastedPeppers.
The basic burger will cost $6.50 and the cost of the five extra toppings a customer can
pay for will be $2.00 each.
If you ran your program in main by building different burgers and printing the results; for
example:
Burger order = new Avocado(new FriedEgg(new GrilledOnions(new BasicBurger())));
double cost = order.makeBurger();
System.out.println(“Total: $” + cost);
CS 342 Homework #2 Fall 2019
Will result in the following output:
Basic Cheeseburger $6.50
+ Grilled Onions $2.00
+ Fried egg $2.00
+ Avocado $2.00
Total: $12.50
Test Cases:
You must include a minimum of 10 unit tests in the DecoratorTest.java file provided in
the Maven template project. These must run with the maven command “test”.
Electronic Submission:
Put the Maven template folder with your files in a .zip and name it with your netid +
Decorator: for example, I would have a submission called mhalle5Decorator.zip, and
submit it to the link on Blackboard course website.
Assignment Details:
Late work on a homework is NOT ACCEPTED. Anything past the deadline will result in
a zero.
We will test all homework on the command line using Maven 3.6.1.
You may develop in any IDE you chose but make sure your homework
can be run on the command line using Maven commands. Any
homework that does not run will result in a zero. If you are unsure
about using Maven, come see your TA or Professor.