Question

C++

edit: You start with the code given and then modify it so that it does what the following asks for.

1. Create an EmployeeException class whose constructor receives a String that consists of an employee’s ID and pay rate. Modify the Employee class so that it has two more fields, idNum and hourlyWage. The Employee constructor requires values for both fields. Upon construction, throw an EmployeeException if the hourlyWage is less than $6.00 or over $50.00. Write a program that establishes at least three Employees with hourlyWages that are above, below, and within the allowed range. Save the program as ThrowEmployee.cpp.

2. Compile and run the EmployeeTest.cpp program. Modify the program to run for 10 employees.
   
   Starting code:

#include
#include
#include
#include
#include
#include "stdafx.h"
using namespace std;

// Date class definition; Member functions defined in Date.cpp

class Date {
public:
   static const unsigned int monthsPerYear{ 12 }; // months in a year
   explicit Date(unsigned int = 1, unsigned int = 1, unsigned int = 1900);
   std::string toString() const; // date string in month/day/year format
   ~Date(); // provided to confirm destruction order
private:
   unsigned int month; // 1-12 (January-December)
   unsigned int day; // 1-31 based on month
   unsigned int year; // any year

};

// constructor confirms proper value for month; calls

Date::Date(unsigned int mn, unsigned int dy, unsigned int yr)
: month{mn}, day{dy}, year{yr} {
if (mn < 1 || mn > monthsPerYear) { // validate the month
throw invalid_argument("month must be 1-12");
}

// output Date object to show when its constructor is called
cout << "Date object constructor for date " << toString() << endl;
}

// print Date object in form month/day/year
string Date::toString() const {
ostringstream output;
output << month << '/' << day << '/' << year;
return output.str();
}

// output Date object to show when its destructor is called
Date::~Date() {
cout << "Date object destructor for date " << toString() << endl;
}

// Employee class definition showing composition.
// Member functions defined in Employee.cpp.

class Employee {
public:
   Employee(const std::string&, const std::string&,
       const Date&, const Date&);
   std::string toString() const;
   ~Employee(); // provided to confirm destruction order
private:
   std::string firstName; // composition: member object
   std::string lastName; // composition: member object
   const Date birthDate; // composition: member object
   const Date hireDate; // composition: member object
};

// Employee class member-function definitions.

// constructor uses member initializer list to pass initializer
// values to constructors of member objects
Employee::Employee(const string& first, const string& last,
const Date &dateOfBirth, const Date &dateOfHire)
: firstName{first}, // initialize firstName
lastName{last}, // initialize lastName   
birthDate{dateOfBirth}, // initialize birthDate
hireDate{dateOfHire} { // initialize hireDate
// output Employee object to show when constructor is called
cout << "Employee object constructor: "
<< firstName << ' ' << lastName << endl;
}

// print Employee object
string Employee::toString() const {
ostringstream output;
output << lastName << ", " << firstName << " Hired: "
<< hireDate.toString() << " Birthday: " << birthDate.toString();
return output.str();
}

// output Employee object to show when its destructor is called
Employee::~Employee() {
cout << "Employee object destructor: "
<< lastName << ", " << firstName << endl;
}

// Demonstrating composition--an object with member objects.

int main() {
Date birth{7, 24, 1949};
Date hire{3, 12, 1988};
Employee manager{"Bob", "Blue", birth, hire};

cout << "\n" << manager.toString() << endl;
}

Answer 1

The given program is modified as asked in question and checked for four Employees with hourlyWages that are above, below, and within the allowed range. If any queries post in comment...

#include <iostream>
//#include <string>
#include <sstream>
//#include <stdafx>
using namespace std;

// Date class definition; Member functions defined in Date.cpp

class Date {
public:
static const unsigned int monthsPerYear{ 12 }; // months in a year
explicit Date(unsigned int = 1, unsigned int = 1, unsigned int = 1900);
std::string toString() const; // date string in month/day/year format
~Date(); // provided to confirm destruction order
private:
unsigned int month; // 1-12 (January-December)
unsigned int day; // 1-31 based on month
unsigned int year; // any year

};

// constructor confirms proper value for month; calls

Date::Date(unsigned int mn, unsigned int dy, unsigned int yr)
: month{mn}, day{dy}, year{yr} {
if (mn < 1 || mn > monthsPerYear) { // validate the month
throw invalid_argument("month must be 1-12");
}

// output Date object to show when its constructor is called
//cout << "Date object constructor for date " << toString() << endl;
}

// print Date object in form month/day/year
string Date::toString() const {
ostringstream output;
output << month << '/' << day << '/' << year;
return output.str();
}

// output Date object to show when its destructor is called
Date::~Date() {
//cout << "Date object destructor for date " << toString() << endl;
}

// Employee class definition showing composition.
// Member functions defined in Employee.cpp.

class Employee {
public:
Employee(const std::string&, const std::string&,
const Date&, const Date&, int&, float&);
std::string toString() const;
~Employee(); // provided to confirm destruction order
private:
std::string firstName; // composition: member object
std::string lastName; // composition: member object
const Date birthDate; // composition: member object
const Date hireDate; // composition: member object
int idNum; // composition: member object
float hourlyWage; // composition: member object
};

// Employee class member-function definitions.

// constructor uses member initializer list to pass initializer
// values to constructors of member objects
Employee::Employee(const string& first, const string& last, const Date &dateOfBirth, const Date &dateOfHire, int &idNumber, float &hourlyWages)
: firstName{first}, // initialize firstName
lastName{last}, // initialize lastName   
birthDate{dateOfBirth}, // initialize birthDate
hireDate{dateOfHire}, // initialize hireDate
idNum{idNumber}, // initialize idNum
hourlyWage{hourlyWages}{ // initialize hourlyWage
// output Employee object to show when constructor is called
if(hourlyWage<6 || hourlyWage>50)
{
throw "\nHourly Wages is not in range it should be between $6.0 to $50.0 ";
}
//cout << "Employee object constructor: " << firstName << ' ' << lastName << endl;
}

// print Employee object
string Employee::toString() const {
ostringstream output;
output << lastName << ", " << firstName << " Hired: "
<< hireDate.toString() << " Birthday: " << birthDate.toString() << " ID Num: "<<idNum <<" Hourly Wage: " << hourlyWage ;
return output.str();
}

// output Employee object to show when its destructor is called
Employee::~Employee() {
//cout << "Employee object destructor: " << lastName << ", " << firstName << endl;
}

// Demonstrating composition--an object with member objects.

int main() {
Date birth1{7, 24, 1949};
Date hire1{3, 12, 1988};
Date birth2{12, 21, 1967};
Date hire2{3, 12, 1994};
Date birth3{7, 15, 1961};
Date hire3{5, 17, 1991};
Date birth4{6, 12, 1959};
Date hire4{4, 18, 1992};
int id1 = 1001;
float wage1 = 12.0;
int id2 = 1002;
float wage2 = 5.0;
int id3 = 1003;
float wage3 = 55.0;
int id4 = 1004;
float wage4 = 26.0;
try{
Employee manager1{"Bob", "Blue", birth1, hire1, id1, wage1};
cout << "\n" << manager1.toString() << endl;
} catch (const char* msg) {
cerr << msg << endl;
}

try{
Employee manager2{"Tom", "Blue", birth2, hire2, id2, wage2};
cout << "\n" << manager2.toString() << endl;
} catch (const char* msg) {
cerr << msg << endl;
}   

try{
Employee manager3{"Samule", "T", birth3, hire3, id3, wage3};
cout << "\n" << manager3.toString() << endl;
} catch (const char* msg) {
cerr << msg << endl;
}

try{
Employee manager4{"Herry", "Tin", birth4, hire4, id4, wage4};
cout << "\n" << manager4.toString() << endl;
} catch (const char* msg) {
cerr << msg << endl;
}   
}