How many members $($data and functions$)$ does the following class have?

class Rational

$\{$

public:

Rational$()$;

Rational$($int numer, int denom$)$;

Rational$($int whole$)$;

int getNumerator$()$;

int getDenominator$()$;

friend void display$($ostream& out, const Rational& value$)$;

private:

int numerator;

int denominator;

$\}$;

$5$

$8$

$2$

$6$

$7$