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All software applications are ultimately about data and how to interpret, process, and present it to the user. Even games are required to store maps, enemy positions, and scoring information, for example. It’s important to have a strong grasp of how to represent and store data in your applications.
In this chapter, you met some of the most basic data types available to Objective-C developers, including int, float, char, and bool. We also highlighted some of the potential issues these data types could throw up, such as the inability of floating-point numbers to accurately represent all values in their stated ranges.