試題詳解

1. d is a valid, non-null Date object 

2. df is a valid, non-null DateFormat object set to the current locale

 What outputs the current locale's country name and the appropriate version of d's date?
(A) Locale loc = Locale.getLocale()； System.out.println(loc.getDisplayCountry() + " " + df.format(d))；
(B) Locale loc = Locale.getDefault()； System.out.println(loc.getDisplayCountry() + " " + df.format(d))；
(C) Locale loc = Locale.getLocale()； System.out.println(loc.getDisplayCountry() + " " + df.setDateFormat(d))；
(D) Locale loc = Locale.getDefault()； System.out.println(loc.getDisplayCountry() + " " + df.setDateFormat(d))；