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Exercise 1

Consider an application that manages different types of animals, such as dogs, cats, and birds. Each animal can eat, sleep, make sounds, etc., but they each do so in different ways.

Which of the concepts discussed in this chapter most closely describes the features of the scenario described above?

Solution

The features of the application described above most closely relate to the concept of polymorphism. Though each animal is of a different species, each has behaviors that are specific to that animal.

If you said that the application most closely relates to inheritance, consider yourself half right. The key difference here is that each animal eats, sleeps, or make sounds in different ways. Thus, the behaviors aren't being inherited.

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