Students 2.0 Map Solution

package students2;


import java.util.*;

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

        Map<String, Student> namesStudent = new LinkedHashMap<>();
        String data = scanner.nextLine();

        while (!data.equals("end")) {
            String[] tokens = data.split("\\s+");
            String firstName = tokens[0];
            String lastName = tokens[1];
            int age = Integer.parseInt(tokens[2]);
            String city = tokens[3];

            String names = firstName + " " + lastName;
            if (!namesStudent.containsKey(names)) {
                Student student = new Student(firstName, lastName, age, city);
                namesStudent.put(names, student);
            } else {
                namesStudent.get(names).setAge(age);
                namesStudent.get(names).setCity(city);
            }

            data = scanner.nextLine();
        }

        String filterCity = scanner.nextLine();
        namesStudent.entrySet().stream()
                .filter(kvp -> kvp.getValue().getCity().equals(filterCity))
                .forEach(kvp -> System.out.println(String.format("%s %s is %d years old", kvp.getValue().firstName, kvp.getValue().lastName, kvp.getValue().age)));
    }

    static class Student {
        private String firstName;
        private String lastName;
        private int age;
        private String city;

        public Student(String firstName, String lastName, int age, String city) {
            this.firstName = firstName;
            this.lastName = lastName;
            this.age = age;
            this.city = city;
        }

        public String getFirstName() {
            return firstName;
        }

        public void setFirstName(String firstName) {
            this.firstName = firstName;
        }

        public String getLastName() {
            return lastName;
        }

        public void setLastName(String lastName) {
            this.lastName = lastName;
        }

        public int getAge() {
            return age;
        }

        public void setAge(int age) {
            this.age = age;
        }

        public String getCity() {
            return city;
        }

        public void setCity(String city) {
            this.city = city;
        }
    }
}