CS 139 Algorithm Development PA1: Fine Dining Part A Due in Canvas by Wednesday, Sept 17 at 11:59PM Part B Due in WebCAT by Wednesday, Sept 24 at 11:59 PM -10% on Thursday, Sep 25th -20% on Friday, Sep 26th -35% on Sunday, Sep 28th -50% on Monday, Sep 29th Not accepted afterwards Part C due in Canvas by Thursday, Sept 25 or one day after you have successfully submitted to WebCAT. Part D due in class on Thursday, Sept 25 or one day after you have successfully submitted to WebCAT.

UPDATES: 9/22/2014 - Changed the prompt for the meal amount to "How much was the total bill? " due to inconsistency in how that was shown in the PA.

9/23/2024 - Changed the output in both areas to be consistent. The server line was missing in the first output example.

Objectives - At the conclusion of this assignment students will have demonstrated that they can:

• Input data from a keyboard.
• Use Java math operations.
• Properly format output to specification.
• Do everything necessary to create, debug, and run a java program.
• Use comments to delineate each section of the program.
• Adhere to a Java Style Guide.
• READ AND FOLLOW DIRECTIONS!!!!!

Background

When dining in a restaurant, patrons are presented with a check for their meal. In this application you will calculate the tax and suggested gratuities for a meal. This application will require you to produce a "check" like you might get in a restaurant.

Requirements

PART A - Graded as a homework assignment. There will be a separate Canvas Assignment for this.

You will provide 3 examples of different values that will be used for your testing. These examples should include the the amount of the bill and the resulting tax, 15% gratuity, 18% gratuity, and 20% gratuity. Part A will be in the form of a quiz and will have some additional questions. You must finish PART A before you can get help with PART B as you should always think through a problem before you attempt to solve it.

PART B - Submitted to webcat. 

You will write a single Java program, BillMaker.java, that must:

• Prompt for and receive the meal amount using the prompt "How much was the total bill? " and the cursor must remain on the line beside the space following the question mark.
• Prompt for and receive name of the server. The prompt must be of the form, "Who was the server? " and the cursor must remain on the line beside the space following the colon.
• Calculate the tax based on the tax rate of 11.8%.
• Calculate the total bill.
• Calculate three tip amounts, one based on 15% of the meal amount, one based on 18%, and the final one at 20% of the meal amount.
  
• Output a report in the following format:

<blank>
Total bill: $ 88.00
       Tax: $ 10.38
   You owe: $ 98.38
<blank>
Your server was kelly.
   Tip 15%: $ 13.20
   Tip 18%: $ 15.84
   Tip 20%: $ 17.60
<blank>
Thank you for dining with us.

Output MUST conform exactly to that shown. Failure to match it exactly will result in WebCAT errors.  Each line above must end with the new line character directly following the output value and the blank lines <blank> in the output are significant. These lines should not include a blank space character, but should include a single new line character.

A complete dialog (with input values highlighted in red would look like)

How much was the total bill? 100
Who was the server? kelly

<blank>
Total bill: $100.00
       Tax: $ 11.80
   You owe: $111.80
<blank>
Your server was kelly.
   Tip 15%: $ 15.00
   Tip 18%: $ 18.00
   Tip 20%: $ 20.00
<blank>
Thank you for dining with us.

NOTES:

1. Each of the output lines must terminate with a single newline "\n" character with the exception of the input prompts.
2. All of the colons should line up vertically. The T for the total bill will be in the first position and all colons will line up with the one after "bill:".
3. Each line identified by <blank> should have a single newline character and no spaces.
4. All currency amounts must be formatted with a $ followed by up to three digits followed by a decimal point and exactly 2 digits following the decimal place. Valid formatting would look like $ 0.50, $ 12.95, $ 1.50, etc.
5. Your tax rate should be a named constant in the file.

Part B Deliverables

1. Zip your BillMaker.java into a zip file. Submit the zip file via Web-CAT (http://webcat.cs.jmu.edu).
2. Your program will be judged on correctness (80%) and conformance to the StyleGuide (20%). The checkoff chart is found here.

Part C, D - Reflection and Pair Programming Log - graded as regular homework assignments. There will be separate Canvas Assignments for this.

You will write a reflection document for this assignment which will let you consider the process of building this program. It will also contain a place to critique this assignment for this class.

In addition, you should keep a log showing how much time you and your partner worked together and how much time you worked alone.

Honor Code

This is a pair programming assignment. You may work with your partner, but may not work with any other team. This assignment should be viewed as a take home exam. Your work on the assignment and your submission must conform to the JMU Honor Code. Authorized help is limited to the classroom handouts, lab material, the TAs for any CS139 or CS 149 section, and either professor. Copying work from another student not in your partnership or the Internet is an honor code violation, which will result in a zero on the assignment and possibly further sanctions. Your work on this assignment is subject to review by MOSS which is a plagiarism detection tool for programs. Submission to WebCAT constitutes your submission of work for academic credit and your agreement that your work may be submitted to MOSS.