Time now();	Can't use () for default constructed variable
Point p = (3,4);	No constructor called, cannot assign (3,4) to left hand side.
p.set_x(-1);	No set_x(int) member function in Point class
cout << Time	There is no defined method for Time objects to be output in this way.
Time due_date(2004, 4, 15);	There are only hour, minutes, and seconds parameters for the Time class' constructor. In particular the value for hours should be between 0 and 23
due_date.move(2,12);	move(int, int) method not defined in Time class.
seconds_from(millenium);	The member method seconds_from(Time) is being called without a implicit parameter.
Employee harry("Hacker", "Harry", 35000);	The Employee constructor is being called with two strings and a number. It will only accept one string, use Employee harry("Hacker, Harry", 35000); instead
harry.set_name("Hacker, Harriet");	set_name(string) is not a member function of class Employee