LAB 3.5 Reading and Writing to a File Bring in billfile.cpp from the Lab 5 folder. The code is as follows: // This program will read in the quantity of a particular item and its price. // It will then print out the total price. // The input will come from a data file and the output will go to // an output file. // PLACE YOUR NAME HERE #include #include using namespace std; int main() { ifstream dataIn;// defines an input stream for a data file ofstream dataOut;// defines an output stream for an output file int quantity;// contains the amount of items purchased float itemPrice;// contains the price of each item float totalBill; // contains the total bill, i.e. the price of all items dataIn.open("transaction.dat");// This opens the file. dataOut.open("bill.out"); // Fill in the appropriate code in the blank below << setprecision(2) << fixed << showpoint;// formatted output // Fill in the input statement that brings in the // quantity and price of the item // Fill in the assignment statement that determines the total bill. // Fill in the output statement that prints the total bill, with a label, // to an output file return 0; } Exercise 1: Notice that this is an altered version of Lab 3.1. This program gets the information from a file and places the output to a file. You must create the data file. Your instructor will tell you how to create the data file and where to put it. Create a data file called transaction.dat that has the following information: 22 10.98 Exercise 2: Fill in the blank and the statements that will read the data from the file and print the following to bill.out: The total bill is $241.56
LAB 3.5 Reading and Writing to a File
Bring in billfile.cpp from the Lab 5 folder. The code is as follows:
// This
// It will then print out the total price.
// The input will come from a data file and the output will go to
// an output file.
// PLACE YOUR NAME HERE
#include <fstream>
#include <iomanip>
using namespace std;
int main()
{
ifstream dataIn;// defines an input stream for a data file
ofstream dataOut;// defines an output stream for an output file
int quantity;// contains the amount of items purchased
float itemPrice;// contains the price of each item
float totalBill; // contains the total bill, i.e. the price of all items
dataIn.open("transaction.dat");// This opens the file.
dataOut.open("bill.out");
// Fill in the appropriate code in the blank below
<< setprecision(2) << fixed << showpoint;// formatted output
// Fill in the input statement that brings in the
// quantity and price of the item
// Fill in the assignment statement that determines the total bill.
// Fill in the output statement that prints the total bill, with a label,
// to an output file
return 0;
}
Exercise 1: Notice that this is an altered version of Lab 3.1. This program gets
the information from a file and places the output to a file. You must
create the data file. Your instructor will tell you how to create the data file
and where to put it. Create a data file called transaction.dat that has the
following information:
22
10.98
Exercise 2: Fill in the blank and the statements that will read the data from the
file and print the following to bill.out:
The total bill is $241.56
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