Audition

import java.util.*;

public class AuditionTest {
    public static void main(String[] args) {
        Audition audition = new Audition();
        List<String> cities = new ArrayList<String>();
        Scanner scanner = new Scanner(System.in);
        while (scanner.hasNextLine()) {
            String line = scanner.nextLine();
            String[] parts = line.split(";");
            if (parts.length > 1) {
                audition.addParticpant(parts[0], parts[1], parts[2],
                        Integer.parseInt(parts[3]));
            } else {
                cities.add(line);
            }
        }
        for (String city : cities) {
            System.out.printf("+++++ %s +++++\n", city);
            audition.listByCity(city);
        }
        scanner.close();
    }
}
class Audition {
    Map<String,List<Person>> mapa;

    public Audition() {
        mapa = new HashMap<>();
    }
    public void addParticpant(String city,String code,String name,int age){
        if(!mapa.containsKey(city)){
            mapa.put(city,new ArrayList<>());
            mapa.get(city).add(new Person(code, name, age));
        }
        else {
            boolean DaliIstKod = mapa.get(city).stream().noneMatch(p -> p.getCode().equals(code));
            if(DaliIstKod)
                mapa.get(city).add(new Person(code, name, age));
        }
    }
    public void listByCity(String city){
        mapa.get(city).stream().sorted(Person.poImeiGodina).forEach(System.out::println);
    }
}
class Person{
    String code;
    String name;
    int age;
    static Comparator<Person> poImeiGodina = Comparator.comparing(Person::getName).thenComparing(Person::getAge).thenComparing(Person::getCode);

    public Person(String code, String name, int age) {
        this.code = code;
        this.name = name;
        this.age = age;
    }

    public String getCode() {
        return code;
    }

    public String getName() {
        return name;
    }

    public int getAge() {
        return age;
    }

    @Override
    public String toString() {
        return code +
                " " + name +
                " " + age;
    }
}