C++ ONLY PLEASE

4. Time Format

In Program 15-20 , the file Time.h contains a Time class. Design a class called MilTime that is derived from the Time class. The MilTime class should convert time in military (24-hour) format to the standard time format used by the Time class. The class should have the following member variables:

milHours: Contains the hour in 24-hour format. For example, 1:00 pm would be stored as 1300 hours, and 4:30 pm would be stored as 1630 hours.

milSeconds: Contains the seconds in standard format.

The class should have the following member functions:

Constructor: The constructor should accept arguments for the hour and seconds, in military format. The time should then be converted to standard time and stored in the hours, min, and sec variables of the Time class.

setTime: Accepts arguments to be stored in the milHours and milSeconds variables. The time should then be converted to standard time and stored in the hours, min, and sec variables of the Time class.

getHour: Returns the hour in military format.

getStandHr: Returns the hour in standard format.

Demonstrate the class in a program that asks the user to enter the time in military format. The program should then display the time in both military and standard format.

Input Validation: The MilTime class should not accept hours greater than 2359, or less than 0. It should not accept seconds greater than 59 or less than 0.

5. Time Clock

Design a class named TimeClock. The class should be derived from the MilTime class you designed in Programming Challenge 4. The class should allow the programmer to pass two times to it: starting time and ending time. The class should have a member function that returns the amount of time elapsed between the two times. For example, if the starting time is 900 hours (9:00 am), and the ending time is 1300 hours (1:00 pm), the elapsed time is 4 hours.

Input Validation: The class should not accept hours greater than 2359 or less than 0.