Notes

7)Create a class that includes a data member that holds a serial number for each object created from a class. That is the first object will be numbered 1, the second 2 and so on. When each object is creating, its constructor can examine this count member variable to determine the appropriate serial number for the new object. Add a member function that permits an object to report its own serial number. Then the main () function that creates three objects and queries each one about its serial number. they should respond i am object 2, and so on

8)Create a class that imitates part of the functionality of the basic data type int. Call the class Int (note different capitalization). The only data in this class is an int variable. Include member functions to initialize an Int to 0, to initialize it to an int value, to display it (it looks just like an int), and to add two Int values. Write a program that exercises this class by creating one uninitialized and two initialized Int values, adding the two initialized values and placing the response in the uninitialized value, and then displaying this result



9)Create a class Polar that represents the points on the plain as polar coordinates (radius and angle). Create an overloaded + operator for addition of two Polar quantities. "Adding” two points on the plain can be accomplished by adding their X coordinates and then adding their Y coordinates. This gives the X and Y coordinates of the "answer.” Thus you'll need to convert two sets of polar coordinates to rectangular coordinates, add them, and then convert the resulting rectangular representation back to polar

10)Imagine a publishing company that markets both book and compact disk versions of its works. Create a class publication that stores the title (a string) and price (type float) of a publication. From this class derive two classes: book, which adds a page count (type int), and CD, which adds a playing time in minutes (type float). Each of these three classes should have a getdata() function to get its data from the user at the keyboard, and a putdata() function to display its data. Write a main() program to test the book and CD classes by creating instances of them, asking the user to fill in data with getdata(), and then displaying the data with putdata()