[NP] Hospital System

package aud6.generics.hospitalSystem;

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

class HospitalSystem<T extends Patient>{
    private ArrayList<T> patients;

    public HospitalSystem(ArrayList<T> patients) {
        this.patients = patients;
    }
    //todo: add instance variable(s)

//todo: constructor

public void printResults(){

    //todo: define specific service implementations with lambda expressions
    PatientService<T>findAllWithDoctor= (patients1, filter) -> (ArrayList<T>) patients1.stream().
            filter(p->p.getDoctor().equals(filter)).collect(Collectors.toList());

    PatientService<T>countAllWithGenderAndAgeLessThanSixty= (patients1, filter) -> (ArrayList<T>) patients1.stream()
            .filter(p->p.getAge()<60 && p.getGender().equals(filter)).collect(Collectors.toList());

    PatientService<T>findAllWithNameSorted= (patients1, filter) -> (ArrayList<T>) patients1.stream()
            .filter(p->p.getName().equals(filter)).sorted().collect(Collectors.toList());

            System.out.println("FIRST SERVICE INFORMATION");
    findAllWithDoctor.patientsInformation(this.patients,"Peter").forEach(System.out::println);

    System.out.println("SECOND SERVICE INFORMATION");
    countAllWithGenderAndAgeLessThanSixty.patientsInformation(this.patients,"FEMALE").forEach(System.out::println);

    System.out.println("THIRD SERVICE INFORMATION");
    findAllWithNameSorted.patientsInformation(this.patients,"Sarah").forEach(System.out::println);
    }
}

enum Gender {
    FEMALE,
    MALE
}

interface Patient {
    long getCode();

    String getName();

    int getAge();

    String getGender();

    String getDoctor();
    //todo: write methods definitions here
}

interface PatientService<T>{
ArrayList<T>patientsInformation(ArrayList<T>patients, String filter);
}

class PatientFromDB2 implements Patient, Comparable<PatientFromDB2> {
    private String code;
    private String name;
    private int age;
    private Gender gender;
    private String doctor;
    private String symptom;

    public PatientFromDB2(String code, String name, int age, Gender gender, String doctor, String symptom) {
        this.code = code;
        this.name = name;
        this.age = age;
        this.gender = gender;
        this.doctor = doctor;
        this.symptom = symptom;
    }

    public static PatientFromDB2 createPatientFromDB2(String line) {
        String[] parts = line.split("\\s+");
        String code = parts[0];
        String name = parts[1];
        int age = Integer.parseInt(parts[2]);
        Gender gender = parts[3].equals("FEMALE") ? Gender.FEMALE : Gender.MALE;
        String doctor = parts[4];
        String symptom = parts[5];
        return new PatientFromDB2(code, name, age, gender, doctor, symptom);
    }

    @Override
    public long getCode() {
        return this.code.hashCode();
    }

    @Override
    public String getName() {
        return this.name;
    }

    @Override
    public int getAge() {
        return this.age;
    }

    @Override
    public String getGender() {
        return this.gender.toString();
    }

    @Override
    public String getDoctor() {
        return this.doctor;
    }

    @Override
    public String toString() {
        return "PatientFromDB2{" +
                "code='" + code + '\'' +
                ", name='" + name + '\'' +
                ", age=" + age +
                ", gender=" + gender +
                ", doctor='" + doctor + '\'' +
                ", symptom='" + symptom + '\'' +
                '}';
    }

    @Override
    public int compareTo(PatientFromDB2 o) {
        return Long.compare(this.getCode(), o.getCode());
    }
}

class PatientFromDB1 implements Patient, Comparable<PatientFromDB1> {
    private long code;
    private String name;
    private int age;
    private Gender gender;
    private String doctor;

    public PatientFromDB1(long code, String name, int age, Gender gender, String doctor) {
        this.code = code;
        this.name = name;
        this.age = age;
        this.gender = gender;
        this.doctor = doctor;
    }

    public static PatientFromDB1 createPatientFromDB1(String line) {
        String[] parts = line.split("\\s+");
        long code = Long.parseLong(parts[0]);
        String name = parts[1];
        int age = Integer.parseInt(parts[2]);
        Gender gender = parts[3].equals("FEMALE") ? Gender.FEMALE : Gender.MALE;
        String doctor = parts[4];
        return new PatientFromDB1(code, name, age, gender, doctor);
    }

    @Override
    public long getCode() {
        return this.code;
    }

    @Override
    public String getName() {
        return this.name;
    }

    @Override
    public int getAge() {
        return this.age;
    }

    @Override
    public String getGender() {
        return this.gender.toString();
    }

    @Override
    public String getDoctor() {
        return this.doctor;
    }

    @Override
    public String toString() {
        return "PatientFromDB1{" +
                "code=" + code +
                ", name='" + name + '\'' +
                ", age=" + age +
                ", gender=" + gender +
                ", doctor='" + doctor + '\'' +
                '}';
    }

    @Override
    public int compareTo(PatientFromDB1 o) {
        return Long.compare(this.code, o.code);
    }
}

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

        int db1Count = Integer.parseInt(scanner.nextLine());

        ArrayList<PatientFromDB1> patientsFromDB1 = IntStream.range(0, db1Count)
                .mapToObj(i -> PatientFromDB1.createPatientFromDB1(scanner.nextLine()))
                .collect(Collectors.toCollection(ArrayList::new));

        int db2Count = Integer.parseInt(scanner.nextLine());

        ArrayList<PatientFromDB2> patientsFromDB2 = IntStream.range(0, db2Count)
                .mapToObj(i -> PatientFromDB2.createPatientFromDB2(scanner.nextLine()))
                .collect(Collectors.toCollection(ArrayList::new));

        HospitalSystem<PatientFromDB1> hospital1System = new HospitalSystem<>(patientsFromDB1);
        HospitalSystem<PatientFromDB2> hospital2System = new HospitalSystem<>(patientsFromDB2);

        System.out.println("--- FIRST HOSPITAL PATIENTS' INFORMATION ---");
        hospital1System.printResults();

        System.out.println("--- SECOND HOSPITAL PATIENTS' INFORMATION ---");
        hospital2System.printResults();
    }
}