Question

Write a complete C++ program that defines the following class:
Class Salesperson
{
public:
Salesperson( ); // constructor
~Salesperson( ); // destructor
Salesperson(double q1, double q2, double q3, double q4); // constructor
void getsales( ); // Function to get 4 sales figures from user
void setsales( int quarter, double sales); // Function to set 1 of 4 quarterly sales
// figure. This function will be called
// from function getsales ( ) every time a
// user enters a sales figure. This function
// will also finds total annual sales.
void printsales( ); // This function will be called from main( ) function to print
// the total sale. Use formatted output to print the total sale up
// to two decimal digits as follows: The total annual sales are:
//$3679.67
void ReadFile( ); // Reads file “HW7_1.txt” and displays it on the //screen.
void EditFile( ); // Asks the user to enter a sentence (80 characters or less)
// to be added to the “HW7_1.txt” file.

private:
double sales [4]; // quarterly sales figures
};

Note:
1. You should implement each member function as a separate function and test your program with
the following main ( ) function.
2. Your class definition and declaration must be in separate files. (Note: Class declaration is in a
file with “.h” extension; whereas Class member function definitions are in a file with same name
as class declaration name, but extension “.cpp”)
3. You should also provide a constructor that can accept argument to initialize the array sales.
4. Include a destructor as well.
5. Using a text editor, create two text files called HW7_1.txt and HW7_2.txt. Each file should
contain five (5) different one-line (80 characters or less) sentences.
6. void EditFile(string filename ) function should also create a third file (HW7_3.txt) consisting of
the contents of file HW7_1.txt plus a sentence entered by the user. Repeat this step as many
Assigned:
November 15, 2018
Due Date:
December 2, 2018
times as the user desires.
7. Next, void EditFile(string filename ) function should merge files HW7_2.txt and HW7_3.txt
into a fourth file (HW7_4.txt).
The input files HW7_2.txt and HW7_3.txt should not be of the same length at this point.
8. In the main( ), print the contents of files HW7_2.txt, HW7_3.txt, and HW7_4.txt; and a count
of the letters in each file.

int main ( )
{
Salesperson s, z(a, b, c, d); //values a, b, c, and d are set by the user using cout/cin.
s.getsales( );
s.printsales( );
z.printsales( );
z.ReadFile( );
z.EditFile( );
return 0;
}