In the last sentence on page 644, it states:
Even when the property wasn't found in en_CA or en resource bundles, the program preferred using Zoo.properties (the default resource bundle) rather than Zoo_en_US.properties (the default locale).
I believe it is imprecise to say that the program prefers using the default resource bundle rather than the resource bundle for the default locale. Unless I'm misunderstanding, the program will
never use the resource bundle for the default locale. I tried this out locally by changing the
Zoo_en_US.properties file as follows:
Then replacing line 18 of the program with
As I expected, I got a
MissingResourceException. Saying the program prefers the default resource bundle over the resource bundle for the default locale could be read to suggest that the resource bundle for the default locale is considered after that.