Java Stream API: Students Joined to Specialties

/*
* Create a new class StudentSpecialty that holds specialty name and faculty number.
* Create a Student class that holds student name and faculty number.
* Create a list of student specialties, where each specialty corresponds to a certain student (via the faculty number).
* You will recieve several specialties in the format :
*   {specialty name} {specialty name} {faculty number}
* Until you reach "Students:" , you should add specialties to the collection.
* After you reach "Students:", you should start reading students in the format :
*   {faculty number} {student's first name} {student's second name}
* You should add the students untill you recieve "END" command.
* Print all student names alphabetically along with their faculty number and specialty name.
* (Use something like "join" LINQ operator in C#.)
* Examples:
*   Student Specialties      join       Students                →          Result (Joined Students with Specialties)
*   SpecialtyName   FacNum          FacNum  Name                              Name        FacNum        Specialty
*   Web Developer   203314          215314  Milena Kirova                 Asya Manova     203314       Web Developer
*   Web Developer   203114          203114  Stefan Popov                  Asya Manova     203314       QA Engineer
*   PHP Developer   203814          203314  Asya Manova                   Diana Petrova   203914       PHP Developer
*   PHP Developer   203914          203914  Diana Petrova                 Diana Petrova   203914       Web Developer
*    QA Engineer    203314          203814  Ivan Ivanov                   Ivan Ivanov     203814       PHP Developer
*   Web Developer   203914                                                Stefan Popov    203114       Web Developer
*
*/

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Comparator;
import java.util.function.Consumer;
import java.util.function.Predicate;

public class StudentsJoinedToSpecialties {
    public static void main(String[] args) throws IOException {
        ArrayList<StudentSpecialty> specialtiesList = new ArrayList<>();

        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
        String[] specialityInfo;
        String nextLine = reader.readLine();
        while (!"Students:".equals(nextLine)) {
            specialityInfo = nextLine.split("\\s+");
            specialtiesList
                    .add(new StudentSpecialty(String.format("%s %s",
                            specialityInfo[0], specialityInfo[1]), specialityInfo[2]));

            nextLine = reader.readLine();
        }

        ArrayList<Student> studentsList = new ArrayList<>();
        String[] studentInfo;
        nextLine = reader.readLine();
        while (!"END".equals(nextLine)) {
            studentInfo = nextLine.split("\\s+");
            studentsList
                    .add(new Student(String.format("%s %s", studentInfo[1], studentInfo[2]),
                            studentInfo[0]));

            nextLine = reader.readLine();
        }

        studentsList.stream().sorted(Comparator.naturalOrder())
                .forEachOrdered(st -> specialtiesList.stream()
                        .filter(getFilterByFacultyNumberPredicate(st))
                        .forEachOrdered(printStudentSpecialtyConsumer(st)));

    }

    private static Consumer<StudentSpecialty> printStudentSpecialtyConsumer(Student student) {
        return spec -> System.out.printf("%s %s %s\r\n",
                student.studentName, student.facultyNumber, spec.specialtyName);
    }

    private static Predicate<StudentSpecialty> getFilterByFacultyNumberPredicate(Student student) {
        return spec -> student.facultyNumber.equals(spec.facultyNumber);
    }
}

class StudentSpecialty {
    final String specialtyName;
    final String facultyNumber;

    StudentSpecialty(String name, String facNumber) {
        this.specialtyName = name;
        this.facultyNumber = facNumber;
    }

    @Override
    public int hashCode() {
        return this.specialtyName.hashCode() + this.facultyNumber.hashCode();
    }
}

class Student implements Comparable<Student> {
    final String studentName;
    final String facultyNumber;

    Student(String name, String facNum) {
        this.studentName = name;
        this.facultyNumber = facNum;
    }

    @Override
    public int compareTo(Student student) {
        return this.studentName.compareTo(student.studentName);
    }

    @Override
    public int hashCode() {
        return this.studentName.hashCode() + this.facultyNumber.hashCode();
    }
}