CityTester

import java.util.ArrayList;
import java.util.Comparator;
import java.util.List;
import java.util.stream.Collectors;

public class CityTester {

    public static void main(String[] args) {

        List <City> cities = new ArrayList<>();
        cities.add(new City("Weatherly", "2,300", "Pennsylvania"));
        cities.add(new City("Salt Lake City", "1,999,888", "Utah"));
        cities.add(new City("Gainesville", "333,888", "Florida"));
        cities.add(new City("Miami", "333,999", "Florida"));
        cities.add(new City("Athens", "444,999", "Georgia"));
        cities.add(new City("Savannah", "333,777", "Georgia"));
        cities.add(new City("Austin", "222,888", "Texas"));

        List<City> newList = cities.stream()
                .sorted(Comparator.comparing(City::getName))
                .collect(Collectors.toList());

        for (City c : newList) {
            System.out.println(c.toString());
            System.out.println();
        }
    }
}