HW 1

Assignment #1

Due: Tues, May 27

Objective

Practice with Java input/output and basic coding, including some simple arithmetic calculations.

Task

Create a program (Filename: Sales.java) that will calculate the taxes and totals for a set of home purchases.

The user is purchasing some items for a new home -- these will include a TV, a washer/dryer set, a refrigerator, and a microwave.
As you can see in the sample execution, you should ask the user for the price of each of these items, in order. All of these prices will be of type double
After reading in the prices of the 4 items, ask the user also for the local sales tax rate (as this may vary in different localities). This will be entered as a percentage (also a double)
After collecting all of the prices and tax rate, your program should compute the subtotal, tax amount, and grand total for all of the purchased items, then produce the output demonstrated in the sample execution. Also note that:
- The user-entered prices should be displayed in default format (i.e. you do not need to add any special formatting for these)
- The output of the sales tax rate should be displayed to 1 decimal place
- The subtotal, tax, and total monetary amounts should be displayed to 2 decimal places.
- See notes page on "Console I/O" for controlling decimal precision of outputs
Write your program so that the output looks EXACTLY like the sample execution shown below (this means same wording, spacing, and formatting of numbers)
- Note: The underlining in the sample execution is used to illustrate what the user is typing in -- obviously the underlining will not appear on the screen.
You may assume that user input will be correct (i.e. numeric entries and valid amounts)

General Requirements

Use the Scanner class for keyboard input
When you write source code, it should be readable and well-documented. See the link Style Guidelines for further instructions on this topic

Sample run 1: (user input underlined)

Welcome to Sales!!

What was the price of the TV? 895.99
and what was the price of the washer/dryer? 724.50
and what was the price of the refrigerator? 1299.98
and what was the price of the microwave? 300   
What is the local sales tax rate? 7.53

Prices:
   TV           = $ 895.99
   Washer/Dryer = $ 724.5
   Refrigerator = $ 1299.98
   Microwave    = $ 300.0

Your subtotal is $ 3220.47
And at a tax rate of 7.5 percent, this will add $ 242.50 in sales tax
for a grand total of $ 3462.97

Goodbye!!

Sample run 2: (user input underlined)

Welcome to Sales!!

What was the price of the TV? 1599.23
and what was the price of the washer/dryer? 942.79
and what was the price of the refrigerator? 1433.96
and what was the price of the microwave? 250.20
What is the local sales tax rate? 6.85

Prices:
   TV           = $ 1599.23
   Washer/Dryer = $ 942.79
   Refrigerator = $ 1433.96
   Microwave    = $ 250.2

Your subtotal is $ 4226.18
And at a tax rate of 6.9 percent, this will add $ 289.49 in sales tax
for a grand total of $ 4515.67

Goodbye!!

Compiling and testing

Compilation instructions for various environments are on the course web site, under the heading "Compilers and Compiling Help". These include instructions for building projects in both NetBeans and Eclipse, as well as compiling from the command line on your CS account or from the DOS prompt. If you use the CS account, I'd recommend using linprog.cs.fsu.edu.

Make sure to test your program with a variety of different inputs. The Sample Runs above are just that -- examples, only. Never hard-code your programs to work for only one or two test cases. Your program should work and calculate the correct results for any set of valid inputs.

Submitting:

On the Blackboard web page link for this course, there is now a menu item (below CGS 3416 Course Content) called "Assignments". Go here for assignment submission links.

General Advice - always keep an untouched copy of your finished homework files on your computer science account, or e-mail a copy of your finished files (before the due date) to your own FSU e-mail account. This way, these files will have a time-stamp which will show when they were last worked on (a timestamp from the CS servers, or a time stamp on the FSU e-mail) and will serve as a backup in case you ever have problems with submitting files through the web site. My advice is to do this for ALL programs.

For HW #1, submit only the following file:

  Sales.java