Amazon.com Widgets Why use Categories in example 11.1?
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+  Official Forum for Programming in Objective-C (the iPhone Programming Language) - Stephen Kochan
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Author Topic: Why use Categories in example 11.1?  (Read 754 times)
Semaj
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« on: March 20, 2011, 12:12:31 PM »
Chapter 11 begins with a list of scenarios of when someone might use a Category, but I don't get why someone would use it in example 11.1. What is the benefit of taking the methods out of the Fraction class and adding them to a Category?  Why not leave it in the Fraction class?  
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