$[$Prob$.6.$ Fundamental of Programming$]$

$(40\%)$ Consider the following class of a $C++$ code :

class Date

$\{$

public:

Date$($int monthValue, int dayValue$)$;

$//$A constructor that takes the month and the day values.

private:

int month;

int day;

$\}$

Write the definition part of the above constructor. Your code should check whether the

month value is between $1$ and $12,$ and the day value is between $1$ and $31.$ If any one of

these two conditions is not satisfied, your program must exit.

$(25\%)$ Explain difference between the private member variables and the public member

variables of a class as for their accessibility.