Lab 7-1: Opening files and performing file output: In this lab, you open a file

Question

Lab 7-1: Opening files and performing file output:

In this lab, you open a file and read input from that file in a prewritten C++ program. The program should read and print the names of flowers and whether they are grown in shade or sun. The data is stored in the input file named flowers.dat.

1. Open the source code file named Flowers.cpp using Notepad or the text editor of your choice.

2. Declare the variables you will need.

3. Write the C++ statements that will open the input file flowers.dat for reading.

4. Write a while loop to read the input until EOF is reached.

5. In the body of the loop, print the name of each flower and where it can be grown (sun or shade).

6. Save this source code file in a directory of your choice, and then make that directory your working directory.

7. Compile the source code file Flowers.cpp.

8. Execute the program.

Here is the flower.cpp file:

Here is the flowers.dat file:

Astilbe

Shade

Marigold

Sun

Begonia

Sun

Primrose

Shade

Cosmos

Sun

Dahlia

Sun

Geranium

Sun

Foxglove

Shade

Trillium

Shade

Pansy

Sun

Petunia

Sun

Daisy

Sun

Aster

Sun

Explanation / Answer

#include <fstream>
#include <iostream>
#include <string>
using namespace std;
int main()
{
ifstream fin;
fin.open ("flowers.dat", ios::in);  
string flowerName;
string sun_or_shade;
if (fin.is_open())
{
while (fin >> flowerName >> sun_or_shade)  
{
cout << flowerName << ", " << sun_or_shade << endl;
}
}
fin.close();
return 0;
}

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