Java Fundamentals - Student Groups

import java.time.LocalDate;
import java.time.format.DateTimeFormatter;
import java.util.*;
import java.util.stream.Collectors;

public class StudentGroups {

    public static class Group {
        String town;
        List<Student> students;

        Group(String town, List<Student> students) {
            this.town = town;
            this.students = students;
        }

        List<Student> getStudents() {
            return students;
        }

        String getTown() {
            return town;
        }
    }

    public static class Student {
        String name;
        String email;
        LocalDate date;

        Student(String name, String email, LocalDate date) {
            this.name = name;
            this.email = email;
            this.date = date;
        }

        String getName() {
            return name;
        }

        String getEmail() {
            return email;
        }

        LocalDate getDate() {
            return date;
        }

        @Override
        public String toString() {
            return String.join(", ", this.getEmail());
        }
    }

    public static class Town {
        String name;
        int seats;
        List<Student> students;

        Town(String name, int seats, List<Student> students) {
            this.name = name;
            this.seats = seats;
            this.students = students;
        }

        String getName() {
            return name;
        }

        int getSeats() {
            return seats;
        }

        List<Student> getStudents() {
            return students;
        }

        void setStudents(Student student) {
            this.students.add(student);
        }
    }

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

        List<Town> towns = new ArrayList<>();
        List<Group> groups = new ArrayList<>();

        String input = scanner.nextLine();
        while (!input.equals("End")) {

            if (input.contains("=>")) {
                String[] inputTowns = input.split(" => ");
                String townName = inputTowns[0];
                String[] inputSeats = inputTowns[1].split("\\s+");
                int seats = Integer.parseInt(inputSeats[0]);
                Town town = new Town(townName, seats, new ArrayList<Student>());
                towns.add(town);
            } else {
                String[] inputStudents = input.split("\\|");
                String studentName = inputStudents[0];
                String studentEmail = inputStudents[1].trim();
                String studentDate = inputStudents[2].trim();

                DateTimeFormatter formatter = DateTimeFormatter.ofPattern("d-MMM-yyyy", Locale.getDefault());
                LocalDate date = LocalDate.parse(studentDate, formatter);

                Student student = new Student(studentName, studentEmail, date);
                towns.get(towns.size() - 1).setStudents(student);
            }

            input = scanner.nextLine();
        }

        for (Town town : towns/*.stream().sorted(Comparator.comparing(Town::getName)).collect(Collectors.toList())*/) {
            int groupCount = (int) Math.ceil(town.getStudents().size() / (double) town.getSeats());
            town.getStudents().sort(Comparator.comparing(Student::getDate).thenComparing(Student::getName).thenComparing(Student::getEmail));
            for (int i = 0; i < groupCount; i++) {
                groups.add(new Group(town.getName(), town.getStudents().stream().skip(i * town.getSeats()).limit(town.getSeats()).collect(Collectors.toList())));
            }
        }

        System.out.printf("Created %d groups in %d towns:%n", groups.size(), towns.stream().map(Town::getName).distinct().count());
        groups.stream().sorted(Comparator.comparing(Group::getTown)).forEach(group -> {
            System.out.printf("%s => ", group.getTown());
            System.out.println(group.getStudents().toString().replaceAll("[\\[\\]]", ""));
        });
    }
}