Question

i am having trouble displaying results and displaying them evenly

it is suppose to look like this

Enter the following data for employee 1:
Employee ID: 1298
Hours worked: 35.8
Pay rate (per hour): 23.45

Enter the following data for employee 2:
Employee ID: 1899
Hours worked: 34.5
Pay rate (per hour): 19.5

Enter the following data for employee 3:
Employee ID: 4435
Hours worked: 30.5
Pay rate (per hour): 20.75

Enter the following data for employee 4:
Employee ID: 1308
Hours worked: 39.4
Pay rate (per hour): 26.75

Enter the following data for employee 5:
Employee ID: 9894
Hours worked: 40
Pay rate (per hour): 34.5

Weekly Payroll
--------------

Emloyee ID Hours Worked Pay Rate Gross Pay
---------- ------------ -------- ---------
1298 35.80 23.45 839.51
1899 34.50 19.50 672.75
4435 30.50 20.75 632.88
1308 39.40 26.75 1053.95
9894 40.00 34.50 1380.00

Press any key to continue . . .

hoursworked: 35.8

Pay rate per hour: 23.45

pay rate
#include <iostream>
#include <iomanip>
#include <string>

using namespace std;

void getData(string [], double[], double [], double []);

void calculateGrossPay(double[], double[], double[]);

void displayOutput(string [], double[], double [], double []);
/*
void displayOutput();
*/
const int NUMBER_OF_EMPLOYEES = 5, EMPLOYEE_ID_LENGTH = 4;
int main()
{

   string employeeID[NUMBER_OF_EMPLOYEES];
   double hoursWorked[NUMBER_OF_EMPLOYEES], payRate[NUMBER_OF_EMPLOYEES], grossPay[NUMBER_OF_EMPLOYEES];
   //look at powerpoint 35-37
  
   getData(employeeID, hoursWorked, payRate, grossPay);
  
   calculateGrossPay(hoursWorked, payRate, grossPay);
  
   displayOutput(employeeID, hoursWorked, payRate, grossPay);
   return 0;
}
void getData(string employeeID [], double hoursWorked [], double payRate [], double grossPay [])
{
   for(int index = 0; index < NUMBER_OF_EMPLOYEES; index ++)
   {
       cout << "Enter the following dat for employee " << index + 1 << "\n\n";
       cout << "Employee ID: ";
       getline(cin, employeeID[index]);
      
       while (employeeID[index].length() != EMPLOYEE_ID_LENGTH)
       {
           cout << "Employee ID must be 4 characters long.\n\n"
               << "Enter the Employee ID: ";
           getline(cin, employeeID[index]);
       }
      
       cout << "Hours worked: ";
       cin >> hoursWorked[index];
      
       while (hoursWorked[index] < 0)
       {
       cout << "Please enter a valid numbers of hours worked: ";
       cin >> hoursWorked[index];
       }
      
       cout << "Pay rate (per hour): ";
       cin >> payRate[index];
      
       while (payRate[index] <= 0)
       {
       cout << "Error. Pay rate must be higher than 0."
           << "\nPay rate (per hour): ";
       cin >> payRate[index];
       }
      
   for(int index = 0; index < NUMBER_OF_EMPLOYEES; index ++)
   {
       grossPay[index] = hoursWorked[index] * payRate[index];
   }
   }
}

void calculateGrossPay(double hoursWorked [], double payRate [], double grossPay [])
{
   for(int index = 0; index < NUMBER_OF_EMPLOYEES; index ++)
   {
       grossPay[index] = hoursWorked[index] * payRate[index];
   }
}

void displayOutput(string employeeID [], double hoursWorked [], double payRate [], double grossPay [])
{
  
   int w = 10;
   cout << left << setw(18) << "Employee ID"
       << right << setw(w) << "Hours Worked"
       << setw(w) << "Pay Rate"
       << setw(w) << "Gross Pay" << endl;  
         
   cout << left << setw(w) << "------------- "
       << right << setw(w) << "------------ "
       << setw(w) << "--------"
       << setw(w) << "---------" <<endl;
   cout << setprecision(2) << fixed;  
  
   for (int index = 1; index <= NUMBER_OF_EMPLOYEES; index++)
   {
       int w = 10;
   cout << left << setw(w) << employeeID[index]
       << right << setw(w) << hoursWorked
       << setw(w) << payRate
       << setw(w) << grossPay << endl;  
   }
}

Answer 1

Program:

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

//function prototypes
void getData(string [], double[], double [], double []);
void calculateGrossPay(double[], double[], double[]);
void displayOutput(string [], double[], double [], double []);

//constants declaration
const int NUMBER_OF_EMPLOYEES = 5, EMPLOYEE_ID_LENGTH = 4;

int main()
{
   //declare arrays to store the data
    string employeeID[NUMBER_OF_EMPLOYEES];
    double hoursWorked[NUMBER_OF_EMPLOYEES], payRate[NUMBER_OF_EMPLOYEES], grossPay[NUMBER_OF_EMPLOYEES];
    //look at powerpoint 35-37

   //get the employee details using getData function
    getData(employeeID, hoursWorked, payRate, grossPay);
   //calculate the gross pay using calculateGrossPay function
    calculateGrossPay(hoursWorked, payRate, grossPay);
   //display the payroll using deisplayOutput function
    displayOutput(employeeID, hoursWorked, payRate, grossPay);

    return 0;
}

//function that read the employee details from the user
void getData(string employeeID [], double hoursWorked [], double payRate [], double grossPay [])
{
   //run a loop to read details of each employee
   for(int index = 0; index < NUMBER_OF_EMPLOYEES; index ++)
    {
        //prompt and read employee id
       cout << "Enter the following data for employee " << index + 1 << "\n";
          cout << "Employee ID: ";
          getline(cin, employeeID[index]);
    
         //check if the employee id entered is valid
          while (employeeID[index].length() != EMPLOYEE_ID_LENGTH)
          {
              //display error message and re-prompt if employee id is not valid
           cout << "Employee ID must be 4 characters long.\n\n"
               << "Enter the Employee ID: ";
              getline(cin, employeeID[index]);
        }  
    
         //prompt and read hours worked
          cout << "Hours worked: ";
          cin >> hoursWorked[index];
    
         //check if the input is valid
          while (hoursWorked[index] < 0)
          {
              //display error message and re-prompt if invalid
              cout << "Please enter a valid numbers of hours worked: ";
              cin >> hoursWorked[index];
          }
    
         //prompt and read pay rate
          cout << "Pay rate (per hour): ";
          cin >> payRate[index];
    
         //check if input is valid
          while (payRate[index] <= 0)
          {
              //display error message and re-prompt if input is invalid
              cout << "Error. Pay rate must be higher than 0."
                  << "\nPay rate (per hour): ";
              cin >> payRate[index];
          }
         cout << endl;
        cin.ignore();
    }
}

//function that calculates gross pay of each employee
void calculateGrossPay(double hoursWorked [], double payRate [], double grossPay [])
{
   //run a loop that iterates through each employee
   for(int index = 0; index < NUMBER_OF_EMPLOYEES; index ++)
    {
        //calculate the gross pay of each employee
        grossPay[index] = hoursWorked[index] * payRate[index];
    }
}

//function that display the output
void displayOutput(string employeeID [], double hoursWorked [], double payRate [], double grossPay [])
{
   int w = 15;
   //display the header
   cout << "Weekly Payroll" << endl;
   cout << "--------------" << endl;
    cout << left << setw(20) << "Employee ID"
       << left << setw(w) << "Hours Worked"
          << setw(w) << "Pay Rate"
          << setw(w) << "Gross Pay" << endl;
       
    cout << left << setw(20) << "------------- "
          << left << setw(w) << "------------ "
              << setw(w) << "--------"
              << setw(w) << "---------" <<endl;
   cout << setprecision(2) << fixed;

   //run a loop that iterates through each employee
   for (int index = 1; index <= NUMBER_OF_EMPLOYEES; index++)
   {
        //display the employee payroll
        cout << left << setw(20) << employeeID[index-1]
              << left << setw(w) << hoursWorked[index-1]
              << setw(w) << payRate[index-1]
              << setw(w) << grossPay[index-1] << endl;
   }
}

Output:

Program Screenshot: