**using c++**

Write a class declaration section for each of the following specifications. Ineach case, include a prototype for a constructor and a member function namedshowdata() that can be used to display data member values.

a. A class named Timethat has integer data members named secs, mins, and hours

b. A class named Complexthat has double-precision data members named real andimaginary

c. A class named Circle that has integer data members named xcenterandycenterand a double-precision data member named radius

d. A class named Systemthat has character data members named computer, printer, and screen, each capable of holding 30 characters (including the end-of-string NULL), and double-precision data members named compPrice, printPrice,and scrnPrice