c++ Could somebody break down this code I\'m about to post and explain it to me

Question

c++

Could somebody break down this code I'm about to post and explain it to me how it works. I understand parts but if their is at all an ELI5(Explain like im 5) here I would really appreciate.

#include <iostream>
#include <fstream>
#include <iomanip>
using namespace std;
class Employee_Info{
public:
   int employeeid;
   string firstname, lastname;
   char taxstatus, typeemp;
   double hoursworked, hourlyrate, overtimehours, overtimepay, grosspay, grosssalary, taxrate, taxamount, netpay;
};//end class
class Employee :public Employee_Info{
public:
   ifstream input;
   Employee_Info empi[100];
   int counter;
   void headers();
   virtual void grosspaycalc() = 0;
   virtual void taxratecalc() = 0;
   virtual void netpaycalc() = 0;
   virtual void employee_report() = 0;
   void netpaysort();
   virtual void displayinfo() = 0;
};//end class
void Employee::netpaysort(){
   for (int pass = 1; pass <= counter; pass = pass + 1) {
       for (int i = 0; i<counter - 1; i = i + 1) {
           if (empi[i].netpay<empi[i + 1].netpay) {
               swap(empi[i].netpay, empi[i + 1].netpay);
           }//end if
       }//end for
   }//end for
}//end netpaysort
class Hourly_Employee : public Employee{
public:
   Hourly_Employee();//constructor
   ~Hourly_Employee();//destructor
   void grosspaycalc(){
       for (int i = 0; i<counter; i++) {
           if(empi[i].typeemp == 'Y')
           {
           // For salary based employees, to find the regular (gross) pay for a week, divide the salary by 52.
           // To compute the overtime pay for a salary based employee,
           // first find the hourly rate by dividing the gross pay by 40, and then compute overtime pay.
           double gross_pay = empi[i].grosspay/52;
           empi[i].hourlyrate = gross_pay/40;
           if (empi[i].hoursworked>40) {
           empi[i].overtimehours = empi[i].hoursworked - 40;
           empi[i].overtimepay = 1.5*empi[i].overtimehours*empi[i].hourlyrate;
           }
           else
           {
            empi[i].overtimehours = 0;
           empi[i].overtimepay = 0;
           }
           }
           else if (empi[i].hoursworked>40){
               empi[i].overtimehours = empi[i].hoursworked - 40;
               empi[i].overtimepay = 1.5*empi[i].overtimehours*empi[i].hourlyrate;
               empi[i].grosspay = empi[i].overtimepay + (empi[i].hoursworked*empi[i].hourlyrate);
           }//end if
           else
           {
           empi[i].overtimehours = 0;
           empi[i].overtimepay = 0;
           empi[i].grosspay = empi[i].hoursworked*empi[i].hourlyrate;
           }
       }//end for
   }//end grosspaycalc
   void taxratecalc(){
       for (int i = 0; i<counter; i++) {
           if (empi[i].grosspay>1000) {
               empi[i].taxrate = .30;
           }//end if
           if (empi[i].grosspay>800 && empi[i].grosspay <= 1000) {
               empi[i].taxrate = .20;
           }//end if
           if (empi[i].grosspay>500 && empi[i].grosspay <= 800) {
               empi[i].taxrate = .10;
           }//end if
           if (empi[i].grosspay >= 0 && empi[i].grosspay <= 500) {
               empi[i].taxrate = 0;
           }//end if
           if ((empi[i].taxstatus == 'H' || empi[i].taxstatus == 'h') && (empi[i].grosspay>500)){
               empi[i].taxrate = empi[i].taxrate - .05;
           }//end if
           if (empi[i].taxstatus == 'S' || empi[i].taxstatus == 's'){
               empi[i].taxrate = empi[i].taxrate + .05;
           }//end if
           if (empi[i].taxstatus == 'M' || empi[i].taxstatus == 'm'){
               empi[i].taxrate = empi[i].taxrate;
           }//end if
       }//end for
   }//end Hourly_Employee taxratecalc
   void netpaycalc(){
       for (int i = 0; i<counter; i++) {
           empi[i].taxamount = empi[i].grosspay*empi[i].taxrate;
           empi[i].netpay = empi[i].grosspay - empi[i].taxamount;
       }//end for
   }//end netpaycalc
   void displayinfo(){
    
       //if (empi[i].typeemp == 'N' || empi[i].typeemp == 'n') {
           cout << setiosflags(ios::fixed | ios::showpoint | ios::left) << setprecision(2);
            for(int i=0; i<counter; i++)
           cout << setw(15) << empi[i].employeeid << setw(15) << empi[i].firstname << setw(15) << empi[i].lastname << "XXX-XX-" << setw(15) << empi[i].taxstatus << setw(15) << empi[i].typeemp << setw(15) << empi[i].hoursworked << "$ " << setw(15) << empi[i].hourlyrate << setw(15) << empi[i].grosspay << setw(15) << empi[i].overtimehours << "$ " << setw(17) << empi[i].overtimepay << "% " << setw(15) << empi[i].taxrate * 100 << "$ " << setw(15) << empi[i].taxamount << "$ " << setw(15) << empi[i].netpay << endl;
       //}//end if
   }//end employeeinfo
   void employee_report(){
       grosspaycalc();
       taxratecalc();
       netpaycalc();
       netpaysort();
   }//end readindata
};//end class
Hourly_Employee::Hourly_Employee():Employee(){
   input.open("data.txt");
   counter=0;
   while (input >> empi[counter].firstname >> empi[counter].lastname >> empi[counter].employeeid >> empi[counter].taxstatus >> empi[counter].typeemp
   >> empi[counter].hoursworked >> empi[counter].hourlyrate >> empi[counter].grosspay) {
       counter++;
   }//end while
}//end constructor
Hourly_Employee::~Hourly_Employee(){
   input.close();
}// end Destructor
//end function
void headers();
int main(int argc, char * argv[]){
   const int MAXSIZE = 70;
   Hourly_Employee hourly_report;
   cout << setw(100) << "NOREEN Payroll Program" << endl;
   headers();
   //for (int i = 0; i<MAXSIZE; i++) {
       hourly_report.employee_report();
       hourly_report.displayinfo();
   //}//end for
   return 0;
}// End Main
void headers(){
   cout << setiosflags(ios::fixed | ios::showpoint | ios::left);
   cout << setw(15) << "EMPLOYEE ID" << setw(15) << "FIRST NAME" << setw(15) << "LAST NAME" << setw(22) << "TAX STATUS" << setw(15) << "SALARIED" << setw(15) << "HOURS WORKED" << setw(17) << "HOURLY RATE" << setw(15) << "GROSS PAY" << setw(15) << "OVERTIME HOURS" << setw(18) << "OVERTIME PAY" << setw(18) << "TAX RATE" << setw(17) << "TAX AMOUNT" << setw(15) << "NET PAY" << endl;
}//end

Explanation / Answer

//header files

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

//class Employee_Info in which variables are declared public
class Employee_Info{
public:
   int employeeid;
   string firstname, lastname;
   char taxstatus, typeemp;
   double hoursworked, hourlyrate, overtimehours, overtimepay, grosspay, grosssalary, taxrate, taxamount, netpay;
};//end class

// class Employee which is derived from Employee_Info
class Employee :public Employee_Info{
public:
   ifstream input;   
   Employee_Info empi[100]; //array of 100 objects of Employee_Info class ie 100 Employees
   int counter;
   void headers();

// all the following functions are declared pure virtual functions which need to be override
   virtual void grosspaycalc() = 0;
   virtual void taxratecalc() = 0;
   virtual void netpaycalc() = 0;
   virtual void employee_report() = 0;
   void netpaysort();
   virtual void displayinfo() = 0;
};//end class

// sort the netPay of Employees in decreasing order using bubble sort method
void Employee::netpaysort(){
   for (int pass = 1; pass <= counter; pass = pass + 1) {
       for (int i = 0; i<counter - 1; i = i + 1) {
           if (empi[i].netpay<empi[i + 1].netpay) { //if netpay are not in decreasing order swap
               swap(empi[i].netpay, empi[i + 1].netpay);
           }//end if
       }//end for
   }//end for
}//end netpaysort

// Hourly_Employee class is derived from Employee class
class Hourly_Employee : public Employee{
public:
   Hourly_Employee();//constructor
   ~Hourly_Employee();//destructor

// override the pure virtual functions of base Employee class here
   void grosspaycalc(){
       for (int i = 0; i<counter; i++) {
           if(empi[i].typeemp == 'Y')
           {
           // For salary based employees, to find the regular (gross) pay for a week, divide the salary by 52.
           // To compute the overtime pay for a salary based employee,
           // first find the hourly rate by dividing the gross pay by 40, and then compute overtime pay.
           double gross_pay = empi[i].grosspay/52;
           empi[i].hourlyrate = gross_pay/40;
           if (empi[i].hoursworked>40) {
           empi[i].overtimehours = empi[i].hoursworked - 40;
           empi[i].overtimepay = 1.5*empi[i].overtimehours*empi[i].hourlyrate;
           }
           else
           {
            empi[i].overtimehours = 0;
           empi[i].overtimepay = 0;
           }
           }
           else if (empi[i].hoursworked>40){
               empi[i].overtimehours = empi[i].hoursworked - 40;
               empi[i].overtimepay = 1.5*empi[i].overtimehours*empi[i].hourlyrate;
               empi[i].grosspay = empi[i].overtimepay + (empi[i].hoursworked*empi[i].hourlyrate);
           }//end if
           else
           {
           empi[i].overtimehours = 0;
           empi[i].overtimepay = 0;
           empi[i].grosspay = empi[i].hoursworked*empi[i].hourlyrate;
           }
       }//end for
   }//end grosspaycalc

   void taxratecalc(){
       for (int i = 0; i<counter; i++) {
           if (empi[i].grosspay>1000) {
               empi[i].taxrate = .30;
           }//end if
           if (empi[i].grosspay>800 && empi[i].grosspay <= 1000) {
               empi[i].taxrate = .20;
           }//end if
           if (empi[i].grosspay>500 && empi[i].grosspay <= 800) {
               empi[i].taxrate = .10;
           }//end if
           if (empi[i].grosspay >= 0 && empi[i].grosspay <= 500) {
               empi[i].taxrate = 0;
           }//end if
           if ((empi[i].taxstatus == 'H' || empi[i].taxstatus == 'h') && (empi[i].grosspay>500)){
               empi[i].taxrate = empi[i].taxrate - .05;
           }//end if
           if (empi[i].taxstatus == 'S' || empi[i].taxstatus == 's'){
               empi[i].taxrate = empi[i].taxrate + .05;
           }//end if
           if (empi[i].taxstatus == 'M' || empi[i].taxstatus == 'm'){
               empi[i].taxrate = empi[i].taxrate;
           }//end if
       }//end for
   }//end Hourly_Employee taxratecalc

   void netpaycalc(){
       for (int i = 0; i<counter; i++) {
           empi[i].taxamount = empi[i].grosspay*empi[i].taxrate;
           empi[i].netpay = empi[i].grosspay - empi[i].taxamount;
       }//end for
   }//end netpaycalc

   void displayinfo(){
    
       //if (empi[i].typeemp == 'N' || empi[i].typeemp == 'n') {
           cout << setiosflags(ios::fixed | ios::showpoint | ios::left) << setprecision(2);
            for(int i=0; i<counter; i++)
           cout << setw(15) << empi[i].employeeid << setw(15) << empi[i].firstname << setw(15) << empi[i].lastname << "XXX-XX-" << setw(15) << empi[i].taxstatus << setw(15) << empi[i].typeemp << setw(15) << empi[i].hoursworked << "$ " << setw(15) << empi[i].hourlyrate << setw(15) << empi[i].grosspay << setw(15) << empi[i].overtimehours << "$ " << setw(17) << empi[i].overtimepay << "% " << setw(15) << empi[i].taxrate * 100 << "$ " << setw(15) << empi[i].taxamount << "$ " << setw(15) << empi[i].netpay << endl;
       //}//end if
   }//end employeeinfo
   void employee_report(){
       grosspaycalc();
       taxratecalc();
       netpaycalc();
       netpaysort();
   }//end readindata
};//end class

Hourly_Employee::Hourly_Employee():Employee(){
   input.open("data.txt"); //open the file
   counter=0;
   while (input >> empi[counter].firstname >> empi[counter].lastname >> empi[counter].employeeid >> empi[counter].taxstatus >> empi[counter].typeemp
   >> empi[counter].hoursworked >> empi[counter].hourlyrate >> empi[counter].grosspay) {
       counter++;
   }//end while
}//end constructor
Hourly_Employee::~Hourly_Employee(){
   input.close(); //close the file
}// end Destructor
//end function

void headers(); //prototype of function

int main(int argc, char * argv[]){
   const int MAXSIZE = 70;
   Hourly_Employee hourly_report;
   cout << setw(100) << "NOREEN Payroll Program" << endl;
   headers();
   //for (int i = 0; i<MAXSIZE; i++) {
       hourly_report.employee_report(); //report of 70 employees
       hourly_report.displayinfo(); // display Info for 70 employees
   //}//end for
   return 0;
}// End Main

//definition of function headers()
void headers(){
   cout << setiosflags(ios::fixed | ios::showpoint | ios::left);
   cout << setw(15) << "EMPLOYEE ID" << setw(15) << "FIRST NAME" << setw(15) << "LAST NAME" << setw(22) << "TAX STATUS" << setw(15) << "SALARIED" << setw(15) << "HOURS WORKED" << setw(17) << "HOURLY RATE" << setw(15) << "GROSS PAY" << setw(15) << "OVERTIME HOURS" << setw(18) << "OVERTIME PAY" << setw(18) << "TAX RATE" << setw(17) << "TAX AMOUNT" << setw(15) << "NET PAY" << endl;
}//end

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.