Program 5 "nursery_inv3.cpp"

Program 5

In this assignment you will implement a program called "nursery_inv3.cpp" to processthe
customer purchase ordersfor a nursery.The purchase orderswill be stored in order records.Each
order record contains nine fields,which are as follows: 1) a plant name (string, no spaces),2) a
county name (string,no space),3)the cost ofthe plant ( double),4) the quantity of plants in the
purchase (integer), 5) the tax on the purchase (double),6)the net cost of the purchase (double),7)
the tax rate, 8) the discount on the purchase (double), and 9) the total cost ofthe purchase.Your
programwill have 3 functions:input,process.and output.Your main program will call (invoke)
each function untilthe end of the data file has been reached.Following are the descriptions ofthe
functionality of each function:
1. The void function “input” will have two parameters: an inputfile streamcalled “in”, and a
customer purchase orderrecord called “order_record”. Bo t h a r gu me n t s wi l l b e
p a s s e d b y r e f e r e n c e . The function willread a plant name (pname),the name of the
county the plantwas purchase in (cname),the cost of the plant (plant_cost),and the
quantity of the plant purchase (quantity) into an orderrecord fromthe data file,
“nursery_stock.txt”.
2. The void function “process” will have one argurment, the order record, which will be
passed by reference. The function will calculate the net cost of the purchase (net_cost),
the tax on the purchase (purchase_tax), the discount on the purchase (discount), and the
total cost of the purchase (total_cost). Please consider the following information to help
you implementthe necessary calculations:
a. The tax rate (in percent) on a purchase is based on the county where the purchase
was made. If the county was dade, the tax rate is 6.5%;if the county is broward,the
tax rate is 6%; if the county was palm, the tax rate is 7%.
b. The net cost of a purchase is calculated by the followingformula:
• net_cost = (quantity x plant_cost )
c. The discount is based on the quantity of plants in the purchase. The discount is
determined is follows:
• If quantity equals 0,then the discount is 0% of the net cost;
• If 1<= quantity <=5 then discount = 1% of the net cost; 6<= quantity <=11 then
discount = 3% of the net cost ; if 12<=quantity <=20 then discount = 5% of the
net cost; 21<= quantity <=50 then discount = 8% ofthe net cost; quantity >50
then discount =12%ofthe net cost). Apply discount afterthe net cost has been
calculated.
d. The tax ona purchase is calculated by the followingformula:
• purchase_tax = (net_cost * tax_rate / 100 (drop /100 if you converted the
rate froma percentage)
e. The total cost of a purchase (rounded to the nearest hundredth)is calculated by the
followingformula:
• total_cost= net_cost+purchase_tax - discount .
N o t e : All tax and cost calculations should be rounded to the nearest
hundredths.
3. The void function “output” will have two argurments, an output file stream and an order record.
The output file stream will be passed by reference, and the order record will be passed by value
using the modifier “const”. Call the output file stream, out, and the order_record, customer_order.
The function will print every field of an orderrecord to the file, “sells_results.txt”. The
fields should be printed in the followingorder: plant name,county name, plant cost,
quantity of plants,net cost of purchase,tax rate, purchase tax,discount,and total cost. The
following table shows the format.
Use the following formatinformation to printthe variables:
Field Format Width Justification
===================================================
Plant Name string 15 left
County Name string 10 left
Plant Cost XXXX.XX 7 right
Quantity of Plants XXXXXX 6 right
Net Cost of Purchase XXXXX.XX 8 right
Tax Rate XX.XXX 6 right
Purchase Tax XXXX.XX 7 right
Discount on Purchase XXXX.XX 7 right
Total Cost of Purchase XXXXXX.XX 9 right
You may implementmore functionsif you find it necessary. Please startthe assignment ASAP,
and ask questionsto make sure you understand what youmust do. It is always good to startwith
the skeletonprogramI provide. Rememberto follow allstyle rules and to include all necessary
documentation (consistent,indentation,proper variable names,pre/post conditions,program
header,function headers,and so forth).
See the sections below called “Input Stream” and “Output File Format ” for more information.
Input Stream:
In the assignment you will declare one ifstreamto bind your input to the file “nursery_stock.txt” to
an input file stream. Whenever a program performs file i/o youmust include the “fstream” library.
Add the following statements to your program:
For source file,“nursery_inv3.cpp”
• Add “#include<iostream>” to your #include statements in your source file.
• Add “#include <fstream>” to your # include statementsin yoursource file.
• Add “#include <string>” to your # include statement in your source file.
• Add “#include <iomanip>” allformattingof output
Format of the input data file (input filename is “nursery_stock.txt”):
Do notinclude column titlesin your data file. Field as order as follows: plant name, county name,
plant cost,quantity.
Owl dade 10.55 100
Hibiscus broward 15.82 15
Rose dade 9.99 45
carnation palm 7.99 32
Rose palm 7.99 60
Widow palm 25.75 5
carnation dade 12.55 10
carnation dade 12.55 8
Lilly broward 6.92 150
xerabtgemum palm 13.63 50
Yarrow dade 22.85 20
Zenobia palm 37.19 32
zephyranthes broward 62.82 40
Daisy broward 15.99 80
aconitum dade 30.02 72
amaryllis dade 16.14 65
Begonia broward 18.45 3
Bellflow broward 2.96 200
bergenia palm 85.92 10
Output File Format:
Considerthe followingsample outputtable when designing and implementingthe function
“output”:
The output is in the following order: plant name, county name, plant cost,quantity of plants,
net cost ofpurchase, tax rate, purchase tax, discount, and total cost.
owl dade 10.55 100 1055 0.065 68.58 126.6 996.98
hibiscus broward 15.82 15 237.3 0.06 14.24 11.87 239.67
rose dade 9.99 45 449.55 0.065 29.22 35.96 442.81
Using the information in the data file “nursery_stock.txt” you should produce and print the
following output to the file, “sells_results.txt”. Your outputshould not contain any titles, but
the outputmust be in the proper order as stated in the assignment. The followingcontains an
example ofwhat your programshould produce and print to the file, “sells_results.txt. You
should double check the results.
owl dade 10.55 100 1055.00 0.065 68.58 126.6 996.98
hibiscus broward 15.82 15 237.30 0.060 14.24 11.87 239.67
rose dade 9.99 45 449.55 0.065 29.22 35.96 442.81
carnation palm 7.99 32 255.68 0.070 17.9 20.45 253.12
rose palm 7.99 60 479.40 0.070 33.56 57.53 455.43
widow palm 25.75 5 128.75 0.070 9.01 1.29 136.47
carnation dade 12.55 10 125.50 0.065 8.16 3.76 129.89
carnation dade 12.55 8 100.40 0.065 6.53 3.01 103.91
lilly broward 6.92 150 1038.00 0.060 62.28 124.56 975.72
xerabtgemum palm 13.63 50 681.50 0.070 47.71 54.52 674.69
yarrow dade 22.85 20 457.00 0.065 29.71 22.85 463.85
zenobia palm 37.19 32 1190.08 0.070 83.31 95.21 1178.18
zephyranthes broward 62.82 40 2512.80 0.060 150.77 201.02 2462.54
daisy broward 15.99 80 1279.20 0.060 76.75 153.5 1202.45
aconitum dade 30.02 72 2161.44 0.065 140.49 259.37 2042.56
amaryllis dade 16.14 65 1049.10 0.065 68.19 125.89 991.4
bogonia broward 18.45 3 55.35 0.060 3.32 0.55 58.12
bellflow broward 2.96 200 592.00 0.060 35.52 71.04 556.48
bergenia palm 85.92 10 859.20 0.070 60.14 25.78 893.57
Use the following skeletonto help you startthis program which is included as a cpp file in
the module: nursery_inv3.cpp
//Your program header will go here
//Include the appropriate libraries
// add using namespace std;
//Put the declaration for order record here
//Prototypes for your functions: input, output, and process will go here
//Function Implementations will go here with their headers
//Your driver (main program) to test the program will go here
int main()
{
//declare an order_record object
//declare an input file stream
//declare an output file stream
//open the input file stream
//open the output file stream
//check to see if the input file stream opened okay
//if input file stream opened okay then
// read until end of file using a while loop
// inside the loop call input, process, output
//close input file stream
//close output file stream
return 0;
}