Question

C++ Questions.

Question 1

What would the function prototype in the class declaration for the following member function look like?

void Fractions::showData()
{
        if((num < 0 && denom < 0) || denom < 0)
        {
                num = -num;
                denom = -denom;
        }
        cout << num << "/" << denom << endl;
}

Question 2

What would the function header of the following member function prototype in class Fractions be?

Fractions operator+(const Fractions &f2);

Question 3

What would the function prototype in the class declaration for the following friend function look like?

int addDay(const Date& a, const Date& b)
{
 return(a.day + b.day);
}

Question 4

What would the destructor prototype for a Book class look like?

Question 5

What would be the missing line in the following mutator function?

class Date{
private:
     int day;
public:
     void setDay(int);
};

void Date::setDay(int day){
     _______________________
}

Answer 1

Answer 1:
void showData();
Answer 2:

Fractions Fractions :: operator+(const Date &a,const Date &b){
}
Answer 3:

//we use friend keyword
friend int addDay(const Date &a,const Date &b);
Answer 4:
~Book()
// destructor name will be same as class name
//prefixed with ~
Answer 5:
void Date::setDay(int day){
   *this->day=day;
}

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