81. Displaying the names of the days of the week

One of the hidden gems in Java is java.text.DateFormatSymbols. This class is a wrapper for date-time formatting data such as the names of the days of the week, and the names of the months. All these names are localizable.

Typically, you will use DateFormatSymbols via a DateFormat such as SimpleDateFormat, but in order to solve this problem, we can use it directly as in the following code:

String[] weekdays = new DateFormatSymbols().getWeekdays();
IntStream.range(1, weekdays.length)
    .mapToObj(t -> String.format("Day: %d -> %s",
       t, weekdays[t]))
    .forEach(System.out::println);

This code will output the weekdays’ names as follows:

Day: 1 -> Sunday
...
Day: 7 -> Saturday

Challenge yourself to come up with another solution.