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Because an application's view manager has so many responsibilities, you can
think of it as the hub that ties the entire
application together. Accordingly, ViewManager subclasses typically
have names that include the word
application, and some programmers would prefer to use
CalorieApplication, rather than CalorieViewManager, to name a
subclass of the ViewManager class. Using CalorieViewManager
has the virtue of identifying the class clearly as a subclass of the
ViewManager class.