Population Counter

import java.util.*;

public class PopulationCounter {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);


        String command;
        Map<String, Country> countries = new TreeMap<>();

        while (!"report".equals(command = scanner.nextLine())) {
            String[] countryTokens = command.split("\\|");
            String cityName = countryTokens[0];
            String countryName = countryTokens[1];
            int population = Integer.valueOf(countryTokens[2]);

            Country country = new Country(countryTokens[1]);

            if (!countries.containsKey(countryName)) {
                country.cities.put(cityName, population);
                country.population = population;

                countries.put(countryName, country);
            } else {
                for (Map.Entry<String, Country> countryKey : countries.entrySet()) {
                    if (countryName.equals(countryKey.getKey())) {
                        countryKey.getValue().cities.put(cityName, population);
                        countryKey.getValue().addPopulation(population);
                        countries.put(countryName, countryKey.getValue());
                    }
                }
            }
        }

        for (Map.Entry<String, Country> country : countries.entrySet()) {
            System.out.printf("%s (total population: %d)%n", country.getKey(), country.getValue().population);
            for (Map.Entry<String, Integer> city : country.getValue().cities.entrySet()) {
                System.out.printf("=>%s: %d%n", city.getKey(), city.getValue());
            }
        }
    }

    private static class Country {
        public String name;
        public Map<String, Integer> cities;
        public int population;

        public Country() {
        }

        public Country(String name) {
            this.name = name;
            this.cities = new LinkedHashMap<>();
        }

        public void addPopulation(int population) {
            this.population += population;
        }

    }
}