Need help finishing with this c++ project

[jlin55]

I need help on how to get my program like it is.
prompt:
One large chemical company pays its salespeople on a commission basis. The salespeople each receive $200 per week plus 9 percent of their gross sales for that week. For example, a salesperson who sells $5000 worth of chemicals in a week receives $200 plus 9 percent of $5000, or a total of $650. Develop a C++ program that uses a while statement to input each salesperson’s gross sales for last week and calculates and displays that salesperson’s earnings. Process one salesperson’s figures at a time.
Your program should have one member data named grossSales.
Your program should have a constructor, a get and a set member function for the data.
The result salaries must be displayed in 2 decimal places.

Sample run:
Enter sales in dollars-1 to end): 5000 //input
Salary is : 650.00 //output
Enter sales in dollars-1 to end): 5678
Salary is: 711.02

cpp:

#include <iostream>
#include "Sales.h"
using namespace std;

int main()
{
	double salary, sales;
    Sales mySales;
    //double commision=0.09;//rate given
    
    
	cout<<"Enter sales In dollar(-1 to end)";
    cin>>sales; //input

// write the loop to get more values
while(sales!=-1)
{
	
}
        mySales.setGrossSales( sales );
        salary = mySales.findSalary();

        cout<<"Salary is "<<salary<<endl;//outputs the salary

}

.h:

class Sales
{
  public:

   // write your constructor here

  int getmember()
  {
  	   return grosssales;
  }

  void setGrossSales( double sales) 
  {
	while(sales!=-1)
	{
		grosssales=sales;
	}
  	//  write codes here
  }
  
  double findSalary()
  {
  	
  	 salary=(0.09*grosssales)+200; 
  	 return salary;
  	  // calculate and return the salary using grosssales
  }

  private:
  	double grosssales;
};

[VictorN]

...
.h:

class Sales
{
  public:

...
  void setGrossSales( double sales) 
  {
	while(sales!=-1)
	{
		grosssales=sales;
	}
  	//  write codes here
  }
   ...
  private:
  	double grosssales;
};

And what this code for setGrossSales should mean? Endless loop for any parameter not equal /1?

[2kaud]

a C++ program that uses a while statement to input each salesperson’s gross sales for last week and calculates and displays that salesperson’s earnings. Process one salesperson’s figures at a time.
Your program should have one member data named grossSales.The result salaries must be displayed in 2 decimal places.

Well for the simplest program that accomplishes this, consider (without error detection)

#include <iostream>
#include <iomanip>
using namespace std;

int main()
{
	double grossSales = 0.0;

	while ((cout << "Enter sales In dollar (-1 to end): ") && (cin >> grossSales) && (grossSales > 0))
		cout << "Salary is: " << fixed << setprecision(2) << showpoint << 0.09 * grossSales + 200 << endl;
}

but as the spec for this program assignment requires use of a constructor and get/set member functions, I guess you are learning how to use classes?

Within the class, for setGrossSales this is just the reverse of getmember() (which really should be renamed something like getGrossSales).
without the while loop. As each salesperson’s figures are to processed one at at a time, the while loop just goes in main(). Then within the loop you ask for the sales figure to be entered and then calculate and display the salary. So within main()

	cout<<"Enter sales In dollar(-1 to end)";
    cin>>sales; //input

and

 mySales.setGrossSales( sales );
        salary = mySales.findSalary();

        cout<<"Salary is "<<salary<<endl;//outputs the salary

goes within the while loop.

[jlin55]

setGrossSales() is the setter method

[jlin55]

Here is what I have so far:
I was able to get the user input the sales, but it does not show the salary right after, but if the user would then input the next it does show the salaries. Any way you can fix this?

the run of my program:
Enter sales(-1 quit): 5000
Enter sales (-1 quit):5678
Salary is 711.00 //should be 711.02
Also I am having trouble with the precision.

code:
main.cpp

#include <iostream>
#include <iomanip>
#include <string>
#include <vector>
#include <limits> 
#include "sales.h"
using namespace std;
using std::cout;
using std::cin;
using std::endl;
int main()
{
    double salary, sales;
    Sales mySales;
    
    
    
    cout<<"Enter sales In dollar(-1 to end): ";
    cin>>sales; //input

// write the loop to get more values
while(sales!=-1)
{
        cout<<"Enter sales In dollar(-1 to end): ";
    cin>>sales; //input

        mySales.setGrossSales( sales );
        salary = mySales.findSalary();

        cout<<std::fixed<<std::setprecision(2)<<"Salary is "<<salary<<endl;//outputs the salary
        //cout;
    }   

}

sales.h:

class Sales
{
  public:

   // write your constructor here

  double getGrossSales()
  {
        return grosssales;
  }
//this function is the setter
  void setGrossSales( double sales) 
  {
    
   if(sales!=-1)
   {
    
        grosssales=sales;
      
}
   
      //  write your codes here
  }
  
  double findSalary()
  {
   int salary;
      salary =(0.09 * grosssales) + 200; 
      return salary;
       // calculate and return the salary using grosssales
  }

  private:
      double grosssales;
};

[2kaud]

When posting code, please use code tags so that the code is readable. Go Advanced, select the formatted code and click '#'.

I was able to get the user input the sales, but it does not show the salary right after, but if the user would then input the next it does show the salaries. Any way you can fix this?

This is because you are asking for sales before the while loop and then also at the beginning of the loop - so inputting the first sales is ignored. Put the cout/cin statements in the while loop after the salary display statement at the end of the loop. Also look at the code in post #3.