In this chapter’s FlightTimes class, modify the displayFlightTimesTable method by converting the two for loops that iterate over the columns, so that they use for-each loops instead.

There’s no comparable benefit to converting the for loop that iterates over the rows. Why? Because if it’s converted to a for-each loop, then there’s no row index variable, and that variable is needed later on as an index into the cities array:

System.out.printf(CITY_FMT_STR, cities[row]);