Modify the program in Q$1$ to use overloaded operators operator $$ and operator$$ rather than read$()$ and write$()$ functions. Implement these operators for all the classes and modify the main program accordingly. The program input$/$output remains unchanged.

The program in Q$1$ is modified to store the workforce records $($of various employee types$)$ in a vector using the following main program.

$($a$)$ Use the declaration and implementation of classes from Q$1$ and run the program using the followig main, and the input values from Q$1.$ Does the program work properly?

$($b$)$ Make the necessary changes to the classes $($not main$)$ to make the program generate the desired output.

Main Program Using Classes EmployeeTypes

File: testemployeetypes. epp

Application program using elasses employeetypes

Programimer: your name

Date:

#include "employeetypes. $h^m$

int main $($void$)$

$\{$

char type; $//$ employee type

ofstream fout $("$employeetypesout$.t{t}^{?}$;

employee $ptr$ :

vector $($:$=1^{\text{'}}$

$q1$code

$/$ #include $$ employeetypes.h$$

int main$($void$)$

$\{$

char type;

ofstream fout$($ employeetypesout.txt $)$;

while $($true$)\{$

cout $$ endl Type of employee$($enter $$ l $$ for laboUrer, $$m$$ for manager, $$ q $$ to quit$)$ : $$;

cin $>>$ type;

if$($type $==$ q $)$ break;

if$($type $==$ l $)\{$

labourer lab;

lab.read$($cin$)$;

cout $$ endl;

lab.write$($cout$)$;

fout $$ endl;

lab.write$($fout$)$;

$\}$ else if$($type $==$m$)\{$

manager man;

man.read$($cin$)$;

cout $$ endl;

man.write$($cout$)$;

fout $$ endl;

man.write$($fout$)$;

$\}$

$\}$

fout.close$()$;

return $0$;

$\}$

#pragma once

#ifndef EMPLOYEETYPES$\_$H

#define EMPLOYEETYPES$\_$H

#include

#include

#include

using namespace std;

class Date $\{$

private:

int day;

int month;

int year;

public:

Date$()$ : day$(0),$ month$(0),$ year$(0)\{\}$

Date$($int d$,$ int m$,$ int y$)$ : day$($d$),$ month$($m$),$ year$($y$)\{\}$

void read$()\{$

cout $$ "Enter start date $($dd mm yyyy$)$: $"$;

cin $>>$ day $>>$ month $>>$ year;

$\}$

void write$()$ const $\{$

cout $$ "Start date: $"$ day month year $$ endl;

$\}$

$\}$;

class Employee $\{$

protected:

string name;

int id;

float salary;

Date start;

public:

Employee$()$ : name$(""),$ id$(0),$ salary$(0\mathrm{.}0)\{\}$

void read$()\{$

cout $$ "Enter employee name: $"$;

cin $>>$ name;

cout $$ "Enter employee ID: $"$;

cin $>>$ id;

cout $$ "Enter employee salary: $"$;

cin $>>$ salary;

start.read$()$;

$\}$

void write$()$ const $\{$

cout $$ "Name: $"$ name $$ endl;

cout ID: $"$ id $$ endl;

cout $$ "Salary: $"$ salary $$ endl;

start.write$()$;

$\}$

$\}$;

class Labourer : public Employee $\{$

private:

string dept;

public:

Labourer$()$ : dept$("")\{\}$

void read$()\{$

Employee::read$()$;

cout $$ "Enter department: $"$;

cin $>>$ dept;

$\}$

void write$()$ const $\{$

Employee::write$()$;

cout $$ "Department: $"$ dept $$ endl;

$\}$

$\}$;

class Manager : public Employee $\{$

private:

string title;

public:

Manager$()$ : title$("")\{\}$

void read$()\{$

Employee::read$()$;

cout $$ "Enter title: $"$;

cin $>>$ title;

$\}$

void write$()$ const $\{$

Employee::write$()$;

cout $$ "Title: $"$ title $$ endl;

$\}$