Generate all files generates a class file for each of the languages
in the Resource Bundle Editor, including the default. The filenames of these
generated files are constructed by using the class name followed by the
two letter ISO code for the language and the two letter ISO code for the
country, if provided.
The filename is always given the .java suffix. Assuming the class name
for a Resource Bundle is "Greetings" and the language is French and the country is France, the class files for that language would be:
GreetingsResourceBundle_fr_FR.java