Selection Sort in a payroll program

[guru189]

Hello all, hope someone can help me out with this. Can someone please help me add a selection sort to my payroll program. I want to sort the net pay (ascending) and have it display the net pay before and after sorting. Any help would be greatly appreciated!

#include<fstream>
#include<iostream>
#include<iomanip>
using namespace std;
class payroll{
ifstream fin;
int n;
char employeename[20];
int hoursworked,overtime;
double hourlyrate,overtimepay,regularpay,grosspay,taxrate,taxamount,netpay;
double totalnetpay,avgnetpay;
void calculategrosspay();
void calculatetax();
void calculatenetpay();
void findavgnetpay();
void printheadings();
void printdata();
public:payroll();
~payroll();
void printreport(); };
payroll::payroll(){
fin.open("payroll.in"); }//CONSTRUCTOR
payroll::~payroll(){
fin.close(); }//DESTRUCTOR
void payroll::calculategrosspay(){
if(hoursworked > 40){
overtime=hoursworked-40;
regularpay=hoursworked*hourlyrate;
overtimepay=overtime*(hourlyrate*1.5);
grosspay=regularpay+overtimepay; }//IF
else{ grosspay=hoursworked*hourlyrate;
regularpay=grosspay;
overtimepay=0;}//ELSE
}//CALCULATEGROSSPAY
void payroll::calculatetax(){
taxrate=.30;
taxamount=grosspay*taxrate; }//CALCULATETAX
void payroll::calculatenetpay(){
netpay=grosspay-taxamount;
totalnetpay=totalnetpay+netpay;
}//CALCULATENETPAY
void payroll::findavgnetpay(){
avgnetpay= totalnetpay/n;
}//FINDAVGNETPAY
void payroll::printheadings(){
cout<<setw(40)<<"-PAYROLL PROGRAM-"<<endl;
cout<<"---------------------------------------------------------"<<endl;
cout<<" NAME HW HR OT-PAY GROSS TAX NETPAY"<<endl;
cout<<"---------------------------------------------------------"<<endl;
}//PRINTHEADINGS
void payroll::printdata(){
cout<<setprecision(2)<<setiosflags(ios::fixed|ios::showpoint);
cout<<setw(6)<<employeename<<setw(6)<<hoursworked<<setw(8)<<
hourlyrate<<setw(8)<<overtimepay<<setw(8)<<grosspay<<
setw(8)<<taxamount<<setw(8)<<netpay<<endl; }//PRINTDATA
void payroll::printreport(){
n=0; totalnetpay=0;
printheadings();
while(fin>>employeename>>hoursworked>>hourlyrate){
calculategrosspay();
calculatetax();
calculatenetpay();
printdata();
n++; }//WHILE

findavgnetpay();
cout<<endl<<"The average net pay for "<<n<<" employees is "<<avgnetpay<<endl;

}//PRINTREPORT


int main(){
payroll employee;
employee.printreport();
system ("pause");
}//MAIN

[Allenmy]

Here is a function I wrote up to help you sort it in ascending order. There is 2 though the other does the swapping for you. I hope this helps.

void sorting_an_array(int numbers[])
{
for(int index = 0; index < MAX - 1; index++)
{
for(int index_2 = index + 1; index_2 < MAX; index_2++)
{
if(numbers[index_2] < numbers[index])
swap(numbers[index], numbers[index_2]);
}
}
}


void swap(int& x, int& y)
{
int temporary;

temporary = x;
x = y;
y = temporary;
}

[guru189]

Great! thank you so much! one more question though...at what point within the program do I insert the function?

[Allenmy]

after you are all done with doing your statements with that array. Then you want to use the function. Just before you get ready to output that array.

[guru189]

Also...does "max" have to be declared in the beginning? Thanks for the help!

[Allenmy]

Yes declare it just after using name space std;

should look like this

const int MAX = 59;

or any number of your choice for how many array elements. Not only that but say if you want that array to hold a different amount of elements its easy to change just change the number

[Allenmy]

so where you say char employee name 20 in the brace make it MAX2. So if you wanted to change anything it makes it easy and you can refer to max for your loops.