Data-only objects have been around a lot longer than “true” objects, and a lot can be done with them without resorting to member functions and other OOP-specific techniques!
Sample Data — a text file that can be used with all the following examples
Example 1 — Base definitions and displaying input data
Example 2 — Find the youngest person in the list
Example 3 — Find the oldest person in the list
Example 4 — Find the average age of all the people in the list
Example 5 — Ask for an age and only display those entries in the list at or above that age
Example 6 — Ask for an age and only display those entries below that age
Unified Example — Display a bunch of statistical data about a list of people (uses all the individual functions from examples 1 – 6)
The combined example broken into three files