Question

Design a class called NumDays. The class’s purpose is to store a value that represents a number of work hours and convert it to a number of days. For example, 8 hours would be converted to 1 day, 12 hours would be converted to 1.5 days, and 18 hours would be converted to 2.25 days. The class should have a constructor that accepts a number of hours, as well as member functions for storing and retrieving the hours and days. The class should also have the following overloaded operators: • (+) Addition operator. When two NumDays objects are added together, the overloaded + operator should return the sum of the two objects’ hours members. • (-) Subtraction operator. When one NumDays object is subtracted from another, the overloaded − operator should return the difference of the two objects’ hours members. Part 2: Design a class named TimeOff. The purpose of the class is to track an employee’s sick leave, vacation, and unpaid time off. It should have, as members,

Answer 1

Sew explaination foe code

Step-by-step explanation:

Code below:

#include <iostream>

using namespace std;

class NumDays{

int hours;

float day;

public:

NumDays()

{

hours=0;

day=0.0;

};

NumDays(int h)

{

hours=h;

day=float(h/8.0);

};

int getHour()

{

return hours;

}

float getDay()

{

return day;

}

NumDays operator +(NumDays obj)

{

int h=getHour()+obj.getHour();

NumDays temp(h);

return temp;

}

NumDays operator -(NumDays obj)

{

int h=getHour()-obj.getHour();

NumDays temp(h);

return temp;

}

const NumDays& operator++() //prefix

{

++hours;

day=float(hours/8.0);

return *this;

}

const NumDays& operator--() //prefix

{

--hours;

day=float(hours/8.0);

return *this;

}

const NumDays operator++(int) //postfix

{

NumDays temp(*this);

++hours;

day=float(hours/8.0);

return temp;

}

const NumDays operator--(int) //postfix

{

NumDays temp(*this);

--hours;

day=float(hours/8.0);

return temp;

}

};

int main()

{

NumDays obj(2),obj2(10),obj3,obj4;

obj3=obj2-obj;

cout<<"'obj3=obj2-obj'=> Day:"<<obj3.getDay()<<"##Hour:"<<obj3.getHour()<<"\\";

obj3=obj+obj2;

cout<<"'obj3=obj+obj2'=> Day:"<<obj3.getDay()<<"##Hour:"<<obj3.getHour()<<"\\";

obj4=obj3++;

cout<<"'obj4=obj3++' => Day:"<<obj4.getDay()<<"##Hour:"<<obj4.getHour()<<"\\";

obj4=++obj3;

cout<<"'obj4=++obj3' => Day:"<<obj4.getDay()<<"##Hour:"<<obj4.getHour()<<"\\";

obj4=obj3--;

cout<<"'obj4=obj3--' => Day:"<<obj4.getDay()<<"##Hour:"<<obj4.getHour()<<"\\";

obj4=--obj3;

cout<<"'obj4=--obj3' => Day:"<<obj4.getDay()<<"##Hour:"<<obj4.getHour()<<"\\";

};

Answer 2

Check the explanation

Step-by-step explanation:

#include <iostream>

#include <string>

using namespace std;

//class declaration

class NumDays{

private:

double hours;

double days;

public:

//constructor

NumDays(double h = 0){

hours = h;

days = h/(8.00);

}

//getter functions

double getHours(){

return hours;

}

double getDays(){

return days;

}

//setter functions

void setHours(double h){

hours = h;

days = h/(8.00);

}

void setDays(double d){

days = d;

hours = d*(8.00);

}

//overload + operator

double operator+ (const NumDays &right){

return hours+right.hours;

}

//overload - operator

double operator- (const NumDays &right){

//check if subtraction will give negative value

if(hours < right.hours){

cout << "ERROR! Cannot subtract! Now terminating!\\";

exit(0);

}

return hours-right.hours;

}

//overload prefix ++ operator

NumDays operator++(){

//pre-increment hours member

++hours;

//update days member

days = hours/(8.00);

//return modified calling object

return *this;

}

//overload postfix ++ operator

NumDays operator++(int){

//post-increment hours member

hours++;

//update days member

days = hours/(8.00);

//return modified calling object

return *this;

}

//overload prefix -- operator

NumDays operator--(){

//pre-decrement hours member

--hours;

//update days member

days = hours/(8.00);

//return modified calling object

return *this;

}

//overload postfix -- operator

NumDays operator--(int){

//post-decrement hours member

hours--;

//update days member

days = hours/(8.00);

//return modified calling object

return *this;

}

};

int main()

{

//create first object

cout << "Creating object with 12 hours...\\";

NumDays obj1(12);

cout << obj1.getHours() << " hours = " <<obj1.getDays() << " days.\\";

//create second object

cout << "\\Creating object with 18 hours...\\";

NumDays obj2(18);

cout << obj2.getHours() << " hours = " <<obj2.getDays() << " days.\\";

//test overloaded + operator

cout << endl << "Adding hours... " << obj1 + obj2 << " hours.\\";

//test overloaded - operator

cout << endl << "Subtracting hours... " << obj2 - obj1 << " hours.\\\\";

//test overloaded ++ operators

cout << "Pre- and post-incrementing first object...\\";

++obj1;

cout << obj1.getHours() << " hours = " <<obj1.getDays() << " days.\\";

obj1++;

cout << obj1.getHours() << " hours = " <<obj1.getDays() << " days.\\";

//test overloaded -- operators

cout << "\\Pre- and post-decrementing second object...\\";

--obj2;

cout << obj2.getHours() << " hours = " <<obj2.getDays() << " days.\\";

obj2--;

cout << obj2.getHours() << " hours = " <<obj2.getDays() << " days.\\";

return 0;

}