Answer to Question #196727 in C++ for djfk

Question

Make Employee an abstract class. Declare salary() and display() as pure virtual functions in it. Derive salaried employee (monthly), hourly employee (per hour basis), and commissioned employee (bonus on completing each target) from base class Employee. The display() function should show employee no, employee name, and salary of all employees. 

Answer 1

#include<iostream>
#include<string>
using namespace std;
class Employee
{
private:
	int no;
	string name;
public:
	virtual void salary () = 0{
		cout << "Enter employee number: ";
		cin >> no;
		cout << "Enter employee name: ";
		cin >> name;
	}
	virtual void display() = 0{
		cout << "Employee Number is " << no << endl;
		cout << "Employee Name is " << name << endl;
	}
};
class SalariedEmployee : public Employee
{
private:
	double monthlySalary;
public:
	void salary()
	{
		Employee::salary();
		cout << "Enter employee monthly salary: ";
		cin >> monthlySalary;
	}
	void display()
	{
		cout<<endl<<"Salaried Employee:"<<endl;
		Employee::display();
		cout << "Salary: " << monthlySalary << endl;
	}
};
class HourlyEmployee : public Employee
{
private:
	double hours;
	double rate;
public:
	void salary()
	{
		Employee::salary();
		cout << "Enter hours: ";
		cin >> hours;
		cout << "Enter hourly rate: ";
		cin >> rate;
	}
	void display()
	{
		cout<<endl<<"Hourly Employee:"<<endl;
		Employee::display();
		cout <<"Hours: " << hours << endl;
		cout <<"Hourly rate: " << rate << endl;
		cout <<"Salary: " << (rate*hours) << endl;
	}
};
class CommissionedEmployee : public Employee
{
private:
	double salarydouble;
	int overtime;
public:
	void salary()
	{
		Employee::salary();
		cout << "Enter salary: ";
		cin >> salarydouble;
		cout << "Enter overtime: ";
		cin >> overtime;
	}
	void display()
	{
		cout<<endl<<"Commissioned Employee:"<<endl;
		Employee::display();
		cout <<"Salary: " << salarydouble << endl;
		cout <<"Overtime: " << overtime << endl;
		cout <<"Total Salary: " << (salarydouble+(overtime*15)) << endl;
	}


};
int main ()
{
	Employee* employees[3];
	SalariedEmployee newSalariedEmployee;
	HourlyEmployee newHourlyEmployee;
	CommissionedEmployee newCommissionedEmployee;
	employees[0]=&newSalariedEmployee;
	employees[1]=&newHourlyEmployee;
	employees[2]=&newCommissionedEmployee;


	for(int i=0;i<3;i++){
		employees[i]->salary();
		cout<<endl;
	}


	for(int i=0;i<3;i++){
		employees[i]->display();
	}


	system("pause");
	return 0;
}