Write C++ program: Object-oriented Program design: 1. Declare a class named Cbox with three float data members named height, length and width, and three member functions: member function Assign ( ) to...

Write C++ program:

Object-oriented Program design:

1. Declare a class named Cbox with three float data members named height, length and width, and three member functions: member function Assign ( ) to assign values to the data member height, length and width, member function Volume ( ) to calculate and return the volume of a box, and member function Surface area ( ) to calculate and return the surface area of a box