Important characteristics (cont'd - 2)

The organization of the code in Listing 4 has the following important characteristics (cont'd from previous slide):

• The second executable statement in the classMain function uses the address stored in the pointer variable along with the pointer-to-member operator (->) to invoke the instance function named doSomething belonging to the Hello02 object.
• All of the significant work done by the program is done by the function named doSomething and other functions, classes, and objects that it may call upon to assist in doing that work.

(Although admittedly the amount of work done by this simple program is minimal.)