Question#4: Having the class Fraction definition below, do the following: 1- Cha

Question

Question#4:

Having the class Fraction definition below, do the following:

1- Change the type of the numerator data member to int * numerator ;

2- Define a defaulted constructor to initialize the fraction to 1

3- Define a parameterized constructor that has two integer parameters as

numerator and denominator values.

4- Define a copy constructor to copy the data members successfully.

5- What other functions that should be defined?

#include <iostream>

using namespace std;

class Fraction

{

private:

int numerator ;

int denominator;

public:

void setNumerator( int num)

{

}

void setDenominator(int num)

{

}

int getDenominator()

{

int getNumerator(){return numerator ;}};

numerator=num;

denominator=num;

return denominator;}

Explanation / Answer

//Having the class Fraction definition below, do the following:
#include <iostream>
using namespace std;
class Fraction
{
private:
//1- Change the type of the numerator data member to int * numerator ;
int* numerator ;
int denominator;
public:
//2- Define a defaulted constructor to initialize the fraction to 1
Fraction()
{
numerator = new int;
*numerator = 1;
denominator = 1;
}
//3- Define a parameterized constructor that has two integer parameters as numerator and denominator values.
Fraction(int num, int den)
{
numerator = new int;
setNumerator(num);
setDenominator(den);
}
void setNumerator( int num)
{
*numerator=num;
}
void setDenominator(int num)
{
denominator=num;
}
int getDenominator()
{
return denominator;
}
int getNumerator()
{
return *numerator ;
}
//4- Define a copy constructor to copy the data members successfully.
Fraction(const Fraction& obj)
{
numerator = new int;
setNumerator(*obj.numerator);
setDenominator(obj.denominator);
}
// 5- What other functions that should be defined?
void print()
{
cout <<*numerator << " / " << denominator << endl;
}
};


int main()
{
Fraction F1(3,2);
F1.print();
Fraction F2(F1);
F1.print();
return 0;
}

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