Write a complete C++ program that defines the following class:

Class Salesperson public: Salesperson(); constructor // destructor -Salesperson)I Salesperson(double q1, double q2, double q3, double q4); II constructor void getsales();I Function to get 4 sales figures from user void setsales( int quarter, double sales); I/ Function to set 1 of 4 quarterly sales // figure. This function will be called II from function getsales () every time a I/ user enters a sales figure. This function /I will also finds total annual sales void printsales); IIThis 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();IIAsks the user to enter a sentence (80 characters or less) // to be added to the "W7 1.txt', file. private: double sales [4]; /quarterly sales figures int main () Salesperson s, z(a, b, c, d);lIvalues 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