CMSC104, Spring 2006
Programming Project 2
Restaurant Helper 1.0 Beta

Out: Thursday, April 6, 2006
Due: Thursday, April 20, 2006 before 11:59 p.m.

The Objective

This project is designed to give you practice with while loops, nested for loops, switch statements and character input.

The Task

When eating a meal in a restaurant, it is inevitable that the check will come and some questions will arise. How much should I tip? Or even worse, when dining with a group, how much should each person pay? A popular software company has decided to develop a product to help people in this difficult situation. You have been asked to develop the beta version of the software. Your software should allow the user to print out a handy table to help determine the tip, add a tip to the total, and also split the check.

Specific Details

Initially, you will ask the user to enter in the total amount of the check. You will then present a menu to the user with the following options:
- The 'P' option will print the tip table.
- The 'A' option will allow the user to add a tip amount to the total.
- The 'S' option will split the check.
- The 'E' option will allow the user to enter a new number.
- There should also be a Quit option on the menu. The menu should continue to display until the users enters a Q for quit.
You should do error checking to ensure that the total amount the user enters is between 10.00 and 100.00, inclusive.

The tip table MUST be written using nested for loops. You should start with an amount of 10 and show increments of 5 until you reach 100. You should show 15%, 20% and 25%. Here is an example of a tip table that goes through 40:

    Tip Calculation Table

Amount     15%    20%    25%
    10    1.50   2.00   2.50
    15    2.25   3.00   3.75
    20    3.00   4.00   5.00
    25    3.75   5.00   6.25
    30    4.50   6.00   7.50
    35    5.25   7.00   8.75
    40    6.00   8.00  10.00

When you split the check, you should prompt the user for the number of ways he or she would like to split it. Keep in mind that the amount will not always be evenly divisible. You can just print the amount you get when doing the division, without worrying about any remainder. For instance, $23 is not evenly divisble by 3, but printing each person should owe $7.67 is okay.

Sample Output

linux1[23]% gcc -ansi -Wall proj2.c
linux1[24]% a.out
 
Your greeting goes here.
 
Please enter the total check amount: 5
The total must be between 10.00 and 100.00
Please enter the total check amount: 150
The total must be between 10.00 and 100.00
Please enter the total check amount: 100
 
P - Print the tip table
A - Add the tip
S - Split the check
E - Enter a new total check amount
Q - Quit
 
Enter your menu selection: P
 
   Tip Calcuation Table

Amount     15%    20%    25%
    10    1.50   2.00   2.50
    15    2.25   3.00   3.75
    20    3.00   4.00   5.00
    25    3.75   5.00   6.25
    30    4.50   6.00   7.50
    35    5.25   7.00   8.75
    40    6.00   8.00  10.00
    45    6.75   9.00  11.25
    50    7.50  10.00  12.50
    55    8.25  11.00  13.75
    60    9.00  12.00  15.00
    65    9.75  13.00  16.25
    70   10.50  14.00  17.50
    75   11.25  15.00  18.75
    80   12.00  16.00  20.00
    85   12.75  17.00  21.25
    90   13.50  18.00  22.50
    95   14.25  19.00  23.75
   100   15.00  20.00  25.00
 

P - Print the tip table
A - Add the tip
S - Split the check
E - Enter a new total check amount
Q - Quit
 
Enter your menu selection: A
 
Enter the tip: 20.00
The total amount of your bill with tip included is $120.00.
 
 
P - Print the tip table
A - Add the tip
S - Split the check
E - Enter a new total check amount
Q - Quit
 
Enter your menu selection: S
 
How many ways would you like to split the check? 2
 
If you split the check 2 ways, each person should pay $60.00.
 
 
P - Print the tip table
A - Add the tip
S - Split the check
E - Enter a new total check amount
Q - Quit
 
Enter your menu selection: E
 
Enter a new total amount: 20.50
 

P - Print the tip table 
A - Add the tip
S - Split the check
E - Enter a new total check amount
Q - Quit
 
Enter your menu selection: P

   Tip Calcuation Table
 
Amount     15%    20%    25%
    10    1.50   2.00   2.50
    15    2.25   3.00   3.75
    20    3.00   4.00   5.00
    25    3.75   5.00   6.25
    30    4.50   6.00   7.50
    35    5.25   7.00   8.75
    40    6.00   8.00  10.00
    45    6.75   9.00  11.25
    50    7.50  10.00  12.50
    55    8.25  11.00  13.75
    60    9.00  12.00  15.00
    65    9.75  13.00  16.25
    70   10.50  14.00  17.50
    75   11.25  15.00  18.75
    80   12.00  16.00  20.00
    85   12.75  17.00  21.25
    90   13.50  18.00  22.50
    95   14.25  19.00  23.75
   100   15.00  20.00  25.00
 
 
P - Print the tip table
A - Add the tip
S - Split the check
E - Enter a new total check amount
Q - Quit
 
Enter your menu selection: A
 
Enter the tip: 4.00
The total amount of your bill with tip included is $24.50.
 
 
A - Add the tip
P - Print the tip table
S - Split the check
E - Enter a new total check amount
Q - Quit
 
Enter your menu selection: Q
 
I hope you enjoyed your meal!!

Submitting the Program

Here is a sample submission command. Note that the project name starts with uppercase 'P'.

submit cs104 Proj2 proj2.c

To verify that your project was submitted, you can execute the following command at the Unix prompt. It will show the file that you submitted in a format similar to the Unix 'ls' command.