parameter løs construtor

Date::Date()
{
    int dy = 0;
    time_t rawtime;
    tm * ptm;
    time ( &rawtime );
    ptm = gmtime ( &rawtime );   
    dy = ptm->tm_hour;
    cout << dy;
    cout << ptm->tm_mday;
}
Date::Date(int dy, int yr)
{   
    day = dy, year = yr,month = 0;
    int antal = 0, dag = 0;
    while (antal < day)
    {   
        month = month + 1;
        antal = antal + daysPerMonth[month];
        dag = day - antal + daysPerMonth[month];
    }   
    day = dag;
    print ();
}

new Date();

vil vel kalde den constructor !?!?

Eller hvad med

Date d;

?