Help with Parent Child class, dynamic_cast

I have a lab for my object oriented programming class and I am hung up at the end trying to get the correct output. I have 3 objects from the Hourly, Salary, and Manager classes. Problem is that everything displays great except that the Manager object takes the sal->getAnnualSalary() and the other Salary objects and displays them at the end of the Manager object, but before the Salary object. What am I missing? There is a lot of code because of the multiple classes, so I will just include my main.cpp

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//libraries
#include<string>
#include<iostream>
#include<conio.h>
#include"Hourly.h"
#include"Salary.h"
#include"Manager.h"
using namespace std;
//display employee method
void displayEmployee(Employee* emp);

int main(void)  //entry into main application
{
	//Create 3 objects, one from each class
	Salary sal("Bob", "Smith", "222112222", "3024567829", 60000);
	Hourly hour("Joe", "Johnson", "111221111", "8563332222", 41.00, 16.00);
	Manager mgr("Billy", "Gunz", "123456789", "9874563210", 75000, 5000);

	cout << "Size of Hourly Employee object: " << sizeof(hour) << endl;
	cout << "Size of pointer to Hourly object: " << sizeof(&hour) << endl;
	cout << endl;

	displayEmployee(&mgr);   //call display functions and send object address
	displayEmployee(&sal);
	displayEmployee(&hour);
	
	

	cout << "Press any key to continue";
	_getch();

	return 0;
}

void displayEmployee(Employee* emp)
{
	cout << "First Name: " << emp->getFName() << endl;
	cout << "Last Name: " << emp->getLName() << endl;
	cout << "SSN : " << emp->getSSN() << endl;
	cout << "Phone: " << emp->getPhone() << endl;

	Manager* mgr = dynamic_cast<Manager*>(emp);
	if (mgr != NULL)
	{
		cout << "Salary $: " << mgr->getAnnualSalary() << endl;
		cout << "Bonus: $" << mgr->getBonus() << endl;
		cout << "Paycheck: $" << mgr->calculatePay() << endl;
		
	}
	
	Salary* sal = dynamic_cast<Salary*>(emp);
	if (sal != NULL)
	{
		cout << "Salary: $" << sal->getAnnualSalary() << endl;
		cout << "Paycheck: $" << sal->calculatePay() << endl;
	}
	Hourly* hour = dynamic_cast<Hourly*>(emp);
	if (hour != NULL)
	{
		cout << "Hours: " << hour->getHours() << endl;
		cout << "Rate: $" << hour->getRate() << endl;
		cout << "Paycheck: $" << hour->calculatePay() << endl;
	}

	
	

		
		
	

}
	

	
Last edited on
What is "Employee"? Is it the base class for each type of employee?

Wouldn't that display function be better off as a class member function? Then each type of "Employee" have it's own display function.

You're really not showing enough content, you need to show the class definitions at the very least.

You probably shouldn't use dynamic_cast here, which only works if Employee is polymorphic (has at least one virtual function) anyway. Consider:

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#include <iostream>

class Employee {
    std::string name;
public:
    Employee(std::string nm) : name(nm) { }
    void print() {
        std::cout << name << '\n';
    }
};

class Manager : public Employee {
    int bonus;
public:
    Manager(std::string nm, int b) : Employee(nm), bonus(b) {}
    void print() {
        Employee::print();
        std::cout << "bonus: " << bonus << '\n';
    }
};

int main() {
    Manager mgr("bob", 42);
    mgr.print();
}

Last edited on
I'll include the entire code, but to answer the first question; yes Employee is the base class for all of the others. Salary and Hourly are derived and Manager is derived from the Salary class.
The instructions for the assignment want us to use dynamic cast, otherwise I would probably just use a toString() or something similar.

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#pragma once

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

class Employee
{
//attributes
protected:
	string fName;
	string lName;
	string SSN;
	string phone;
public:
	//Constructors and Descructor
	Employee();


	Employee(string fName, string lName, string SSN, string phone);
	virtual~Employee();

	//behaviors
	float calculatePay();
	virtual string toString(void);

	//accessors and mutators
	string getFName(void);
	void setFName(string fName);

	string getLName(void);
	void setLName(string lName);
	
	string getSSN(void);
	void setSSN(string SSN);

	string getPhone(void);
	void setPhone(string phone);


};

#include "Employee.h"



//Constructors and Descructor
Employee::Employee()
{
	fName = "unknown";
	lName = "unknown";
	SSN = "unknown";
	phone = "unkown";
}
Employee::Employee(string fName, string lName, string SSN, string phone)
{
	setFName(fName);
	setLName(lName);
	setSSN(SSN);
	setPhone(phone);
}
Employee::~Employee()
{
	
}

//behaviors
//Method calculates pay
float Employee::calculatePay() //return 0.0f
{
	float pay = 0.0f;
	return pay;
}
//Method displays employee information
string Employee::toString(void)
{
	return "First Name: " + fName + "\nLast Name: " + lName + "\nSSN: "
		+ SSN + "\nPhone Number: " + phone;
}

//accessors and mutators
string Employee::getFName(void)
{
	return fName;
}
void Employee::setFName(string fName)
{
	this->fName = fName;		
}

string Employee::getLName(void)
{
	return lName;
}
void Employee::setLName(string lName)
{
	this->lName = lName;
}

string Employee::getSSN(void)
{
	return SSN;
}
void Employee::setSSN(string SSN)
{
	this->SSN = SSN;
}

string Employee::getPhone(void)
{
	return phone;
}
void Employee::setPhone(string phone)
{
	this->phone = phone;
}

#include "Employee.h"



//Constructors and Descructor
Employee::Employee()
{
	fName = "unknown";
	lName = "unknown";
	SSN = "unknown";
	phone = "unkown";
}
Employee::Employee(string fName, string lName, string SSN, string phone)
{
	setFName(fName);
	setLName(lName);
	setSSN(SSN);
	setPhone(phone);
}
Employee::~Employee()
{
	
}

//behaviors
//Method calculates pay
float Employee::calculatePay() //return 0.0f
{
	float pay = 0.0f;
	return pay;
}
//Method displays employee information
string Employee::toString(void)
{
	return "First Name: " + fName + "\nLast Name: " + lName + "\nSSN: "
		+ SSN + "\nPhone Number: " + phone;
}

//accessors and mutators
string Employee::getFName(void)
{
	return fName;
}
void Employee::setFName(string fName)
{
	this->fName = fName;		
}

string Employee::getLName(void)
{
	return lName;
}
void Employee::setLName(string lName)
{
	this->lName = lName;
}

string Employee::getSSN(void)
{
	return SSN;
}
void Employee::setSSN(string SSN)
{
	this->SSN = SSN;
}

string Employee::getPhone(void)
{
	return phone;
}
void Employee::setPhone(string phone)
{
	this->phone = phone;
}

#include "Hourly.h"



Hourly::Hourly()
{
	rate = 0;
	hours = 0;
}

Hourly::Hourly(string fName, string lName, string SSN, string phone, float hours, float rate)
	: Employee(fName, lName, SSN, phone)
{
	setHours(hours);
	setRate(rate);
}


Hourly::~Hourly()
{
}

//behaviors
float Hourly::calculatePay()
{
	float pay = 0.0f;
	float OT = hours - 40.0f;
	float OTPay;
	float OTRate = rate * 1.5f;
	
	if (OT > 0.0f)
		OTPay = OT * OTRate;
	else
		OTPay = 0.0f;

	pay = (hours * rate) + OTPay;

	return pay;
}
string  Hourly::toString()
{
	return Employee::toString() + ", Hours: " + to_string(hours) + ", Rate: " + to_string(rate) + "Paycheck: " + to_string(calculatePay());
}

//accessors and mutators
float  Hourly::getHours(void)
{
	return hours;
}
void  Hourly::setHours(float hours)
{
	if (hours > 0)
		this->hours = hours;
	else
		this->hours = 0;

}

float  Hourly::getRate(void)
{
	return rate;
}
void  Hourly::setRate(float rate)
{
	if (rate > 0)
		this->rate = rate;
	else
		this->rate = 0;
}

#pragma once
#include<string>
#include"Employee.h"
using namespace std;

class Salary : public Employee
{
private:

protected:
	double annualSalary;

public:
	Salary(string fName, string lName, string SSN, string phone, double annualSalary);
	Salary();
	~Salary();

	float calculatePay();
	string toString(void);

	double getAnnualSalary(void);
	void setAnnualSalary(double annualSalary);
};


#include "Salary.h"



Salary::Salary()
{
	annualSalary = 0;
}

Salary::Salary(string fName, string lName, string SSN, string phone, double annualSalary)
	: Employee(fName, lName, SSN, phone)
{
	setAnnualSalary(annualSalary);
}


Salary::~Salary()
{
}

float Salary::calculatePay()
{
	float pay = annualSalary / 52.0f;

	return pay;
		
}
string Salary::toString(void)
{
	return Employee::toString() + ", Salary: " + to_string(annualSalary) + ", Paycheck: " + to_string(calculatePay());
}

double Salary::getAnnualSalary(void)
{
	return annualSalary;
}
void Salary::setAnnualSalary(double annualSalary)
{
	if (annualSalary > 0)
		this->annualSalary = annualSalary;
	else
		this->annualSalary = 0;
}


#pragma once
#include"Salary.h"

class Manager : public Salary
{
private:
	double bonus;
public:
	Manager();
	Manager(string fName, string lName, string SSN, string phone, double annualSalary, double bonus);
	~Manager();

	float calculatePay();
	string toString();

	double getBonus(void);
	void setBonus(double bonus);
};


#include "Manager.h"



Manager::Manager()
{
}

Manager::Manager(string fName, string lName, string SSN, string phone, double annualSalary, double bonus)
	: Salary(fName, lName, SSN, phone, annualSalary)
{
	setBonus(bonus);
}


Manager::~Manager()
{
}

float Manager::calculatePay()
{
	float pay = (bonus + annualSalary) / 52.0f;

	return pay;
}
string Manager::toString()
{
	return Salary::toString() + ", Salary: " + to_string(annualSalary) + ", Bonus: " + to_string(bonus)
		+ ", Paycheck: " + to_string(calculatePay());
}

double Manager::getBonus(void)
{
	return bonus;
}
void Manager::setBonus(double bonus)
{
	if (bonus > 0)
		this->bonus = bonus;
	else
		this->bonus = 0;
}


/*
Christopher Brookens
CIS247C
WK5 Lab5
11/26/19
*/

//libraries
#include<string>
#include<iostream>
#include<conio.h>
#include"Hourly.h"
#include"Salary.h"
#include"Manager.h"
using namespace std;
//display employee method
void displayEmployee(Employee* emp);

int main(void)  //entry into main application
{
	//Create 3 objects, one from each class
	Salary sal("Bob", "Smith", "222112222", "3024567829", 60000);
	Hourly hour("Joe", "Johnson", "111221111", "8563332222", 41.00, 16.00);
	Manager mgr("Billy", "Gunz", "123456789", "9874563210", 75000, 5000);

	cout << "Size of Hourly Employee object: " << sizeof(hour) << endl;
	cout << "Size of pointer to Hourly object: " << sizeof(&hour) << endl;
	cout << endl;

	displayEmployee(&mgr);   //call display functions and send object address
	displayEmployee(&sal);
	displayEmployee(&hour);
	
	

	cout << "Press any key to continue";
	_getch();

	return 0;
}

void displayEmployee(Employee* emp)
{
	cout << "First Name: " << emp->getFName() << endl;
	cout << "Last Name: " << emp->getLName() << endl;
	cout << "SSN : " << emp->getSSN() << endl;
	cout << "Phone: " << emp->getPhone() << endl;

	Manager* mgr = dynamic_cast<Manager*>(emp);
	if (mgr != NULL)
	{
		cout << "Salary $: " << mgr->getAnnualSalary() << endl;
		cout << "Bonus: $" << mgr->getBonus() << endl;
		cout << "Paycheck: $" << mgr->calculatePay() << endl;
		
	}
	
	Salary* sal = dynamic_cast<Salary*>(emp);
	if (sal != NULL)
	{
		cout << "Salary: $" << sal->getAnnualSalary() << endl;
		cout << "Paycheck: $" << sal->calculatePay() << endl;
	}
	Hourly* hour = dynamic_cast<Hourly*>(emp);
	if (hour != NULL)
	{
		cout << "Hours: " << hour->getHours() << endl;
		cout << "Rate: $" << hour->getRate() << endl;
		cout << "Paycheck: $" << hour->calculatePay() << endl;
	}

	
}
	

	
Let us know if your problem persist:

Employee.hpp:
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#ifndef EMPLOYEE_HPP
#define EMPLOYEE_HPP

#include <iostream>
#include <string>


class Employee {
public:
    Employee() = default;
    Employee( std::string f_name_arg,
              std::string l_name_arg,
              std::string ssn_arg,
              std::string phone_arg );

    virtual double calculatePay() = 0;
    virtual std::string toString();

    std::string getFName() const;
    void setFName(const std::string& f_name_arg);

    std::string getLName() const;
    void setLName(const std::string& l_name_arg);

    std::string getSsn() const;
    void setSsn(const std::string& ssn_arg);

    std::string getPhone() const;
    void setPhone(const std::string& phone_arg);

protected:
    std::string f_name { "unknown" };
    std::string l_name { "unknown" };
    std::string ssn    { "unknown" };
    std::string phone  { "unknown" };

    virtual ~Employee() = default;
};


#endif // EMPLOYEE_HPP 


Employee.cpp:
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#include "Employee.hpp"


Employee::Employee( std::string f_name_arg,
                    std::string l_name_arg,
                    std::string ssn_arg,
                    std::string phone_arg )
{
    setFName(f_name_arg);
    setLName(l_name_arg);
    setSsn(ssn_arg);
    setPhone(phone_arg);
}


std::string Employee::toString()
{
    return "First Name: " + f_name + "\nLast Name: " + l_name + "\nssn: "
           + ssn + "\nPhone Number: " + phone;
}



std::string Employee::getFName() const
{
    return f_name;
}


void Employee::setFName(const std::string& f_name_arg)
{
    f_name = f_name_arg;
}


std::string Employee::getLName() const
{
    return l_name;
}


void Employee::setLName(const std::string& l_name_arg)
{
    l_name = l_name_arg;
}


std::string Employee::getSsn() const
{
    return ssn;
}


void Employee::setSsn(const std::string& ssn_arg)
{
    ssn = ssn_arg;
}


std::string Employee::getPhone() const
{
    return phone;
}


void Employee::setPhone(const std::string& phone_arg)
{
    phone = phone_arg;
}


Hourly.hpp:
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#ifndef HOURLY_HPP
#define HOURLY_HPP


#include "Employee.hpp"


class Hourly : public Employee {
public:
    Hourly() = default;
    Hourly( std::string f_name_arg,
            std::string l_name_arg,
            std::string ssn_arg,
            std::string phone_arg,
            double hours_arg = 0.0,
            double rate_arg = 0.0 );
    ~Hourly() = default;

    double calculatePay() override;
    std::string toString() override;

    double getHours() const;
    void setHours(double hours_arg = 0.0);
    double getRate() const;
    void setRate(double rate_arg = 0.0);

private:
    double rate {};
    double hours {};
};


#endif // HOURLY_HPP 


Hourly.cpp:
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#include "Hourly.hpp"


Hourly::Hourly( std::string f_name_arg,
                std::string l_name_arg,
                std::string ssn_arg,
                std::string phone_arg,
                double hours_arg,
                double rate_arg )
    : Employee(f_name_arg, l_name_arg, ssn_arg, phone_arg)
{
    setHours(hours_arg);
    setRate(rate_arg);
}


//behaviors
double Hourly::calculatePay()
{
    double ot { hours - 40.0 };
    double ot_pay {};
    if (ot > 0.0) {
        ot_pay = ot * rate * 1.5;
    }

    return (hours * rate) + ot_pay;
}


std::string Hourly::toString()
{
    return Employee::toString() + ", Hours: " + std::to_string(hours)
                                + ", Rate: " + std::to_string(rate)
                                + "Paycheck: " + std::to_string(calculatePay());
}


double Hourly::getHours() const
{
    return hours;
}


void Hourly::setHours(double hours_arg)
{
    hours = hours_arg;
}


double Hourly::getRate() const
{
    return rate;
}


void Hourly::setRate(double rate_arg)
{
    rate = rate_arg;
}


Salary.hpp:
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#ifndef SALARY_HPP
#define SALARY_HPP


#include "Employee.hpp"
#include <string>


class Salary : public Employee {
public:
    Salary() = default;
    Salary( std::string f_name_arg,
            std::string l_name_arg,
            std::string ssn_arg,
            std::string phone_arg,
            double annual_salary_arg = 0.0 );
    ~Salary() = default;

    double calculatePay() override;
    std::string toString() override;

    double getAnnualSalary() const;
    void setAnnualSalary(double annual_salary_arg = 0.0);

protected:
    double annual_salary {};
};


#endif // SALARY_HPP 


Salary.cpp:
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#include "Salary.hpp"


Salary::Salary( std::string f_name_arg,
                std::string l_name_arg,
                std::string ssn_arg,
                std::string phone_arg,
                double annual_salary_arg )
    : Employee(f_name_arg, l_name_arg, ssn_arg, phone_arg)
{
    setAnnualSalary(annual_salary_arg);
}


double Salary::calculatePay()
{
    return annual_salary / 52.0;
}


std::string Salary::toString()
{
    return Employee::toString() + ", Salary: " + std::to_string(annual_salary)
                                + ", Paycheck: " + std::to_string(calculatePay());
}


double Salary::getAnnualSalary() const
{
    return annual_salary;
}


void Salary::setAnnualSalary(double annual_salary_arg)
{
    annual_salary = annual_salary_arg;
}


Manager.hpp:
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#ifndef MANAGER_HPP
#define MANAGER_HPP


#include "Salary.hpp"


class Manager : public Salary {
public:
    Manager() = default;
    Manager( std::string f_name_arg,
             std::string l_name_arg,
             std::string ssn_arg,
             std::string phone_arg,
             double annual_salary_arg = 0.0,
             double bonus_arg = 0.0 );
    ~Manager() = default;

    double calculatePay() override;
    std::string toString() override;

    double getBonus() const;
    void setBonus(double bonus_arg = 0.0);

private:
    double bonus {};
};


#endif // MANAGER_HPP 


Manager.cpp:
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#include "Manager.hpp"


Manager::Manager( std::string f_name_arg,
                  std::string l_name_arg,
                  std::string ssn_arg,
                  std::string phone_arg,
                  double annual_salary_arg,
                  double bonus_arg )
    : Salary(f_name_arg, l_name_arg, ssn_arg, phone_arg, annual_salary_arg)
{
    setBonus(bonus_arg);
}


double Manager::calculatePay()
{
    return (bonus + annual_salary) / 52.0;
}


std::string Manager::toString()
{
    return Salary::toString() + ", Salary: " + std::to_string(annual_salary)
                              + ", Bonus: " + std::to_string(bonus)
                              + ", Paycheck: " + std::to_string(calculatePay());
}


double Manager::getBonus() const
{
    return bonus;
}


void Manager::setBonus(double bonus_arg)
{
    bonus = bonus_arg;
}


main.cpp:
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/*
    Christopher Brookens
    CIS247C
    WK5 Lab5
    11/26/19
*/
#include "Hourly.hpp"
#include "Salary.hpp"
#include "Manager.hpp"
#include <iostream>
#include <limits>
#include <string>


void displayEmployee(Employee* emp);
void waitForEnter();


int main()
{
    Salary sal("Bob", "Smith", "222112222", "3024567829", 60000);
    Hourly hour("Joe", "Johnson", "111221111", "8563332222", 41.00, 16.00);
    Manager mgr("Billy", "Gunz", "123456789", "9874563210", 75000, 5000);

    std::cout << "Size of Hourly Employee object: " << sizeof(hour) << '\n';
    std::cout << "Size of pointer to Hourly object: " << sizeof(&hour) << '\n';
    std::cout << '\n';

    std::cout << "\n### Displaying Manager ###\n";
    displayEmployee(&mgr);
    std::cout << "\n\n### Displaying Salary ###\n";
    displayEmployee(&sal);
    std::cout << "\n\n### Displaying Hourly ###\n";
    displayEmployee(&hour);

    waitForEnter();
    return 0;
}


void displayEmployee(Employee* emp)
{
    std::cout << "--- Employee *: ---\n" << emp->getFName()
              << "\nFirst Name: " << emp->getFName()
              << "\nLast Name: " << emp->getLName()
              << "\nssn : " << emp->getSsn()
              << "\nPhone: " << emp->getPhone() << '\n';

    Manager* mgr = dynamic_cast<Manager*>(emp);
    if (mgr != nullptr)
    {
        std::cout << "\n--- Manager *: ---\n" << emp->getFName()
                  << "\nSalary $: " << mgr->getAnnualSalary()
                  << "\nBonus: $" << mgr->getBonus()
                  << "\nPaycheck: $" << mgr->calculatePay() << '\n';
    }

    Salary* sal = dynamic_cast<Salary*>(emp);
    if (sal != nullptr)
    {
        std::cout << "\n--- Salary *:---\n" << emp->getFName()
                  << "\nSalary: $" << sal->getAnnualSalary()
                  << "\nPaycheck: $" << sal->calculatePay() << '\n';
    }

    Hourly* hour = dynamic_cast<Hourly*>(emp);
    if (hour != nullptr)
    {
        std::cout << "\n--- Hourly *: ---\n" << emp->getFName()
                  << "\nHours: " << hour->getHours()
                  << "\nRate: $" << hour->getRate()
                  << "\nPaycheck: $" << hour->calculatePay() << '\n';
    }
}


void waitForEnter()
{
    std::cout << "\n\nPress ENTER to continue...\n";
    std::cin.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
}


Output:
Size of Hourly Employee object: 152
Size of pointer to Hourly object: 8


### Displaying Manager ###
--- Employee *: ---
Billy
First Name: Billy
Last Name: Gunz
ssn : 123456789
Phone: 9874563210

--- Manager *: ---
Billy
Salary $: 75000
Bonus: $5000
Paycheck: $1538.46

--- Salary *:---
Billy
Salary: $75000
Paycheck: $1538.46


### Displaying Salary ###
--- Employee *: ---
Bob
First Name: Bob
Last Name: Smith
ssn : 222112222
Phone: 3024567829

--- Salary *:---
Bob
Salary: $60000
Paycheck: $1153.85


### Displaying Hourly ###
--- Employee *: ---
Joe
First Name: Joe
Last Name: Johnson
ssn : 111221111
Phone: 8563332222

--- Hourly *: ---
Joe
Hours: 41
Rate: $16
Paycheck: $680


Press ENTER to continue...

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