Books

import java.util.*;
public class Book {
    private String title;
    private String author;
    private String publishingHouse;
    private int publishingYear;
    private int id;

    public Book(){

    }

    public Book(String title, String author, String publishingHouse, int publishingYear, int id) {
        this.title = title;
        this.author = author;
        this.publishingHouse = publishingHouse;
        this.publishingYear = publishingYear;
        this.id = id;
    }

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public String getAuthor() {
        return author;
    }

    public void setAuthor(String author) {
        this.author = author;
    }

    public String getPublishingHouse() {
        return publishingHouse;
    }

    public void setPublishingHouse(String publishingHouse) {
        this.publishingHouse = publishingHouse;
    }

    public int getPublishingYear() {
        return publishingYear;
    }

    public void setPublishingYear(int publishingYear){
        this.publishingYear = publishingYear;
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    @Override
    public String toString() {
        return  "Title:" + title +
                ", Author:'" + author +
                ", Publishing House:'" + publishingHouse +
                ", Year of publishing:" + publishingYear +
                ", ID:" + id;
    }
}
class Library{
    private String name;
    private ArrayList<Book> library = new ArrayList<Book>();

    public Library(){

    }

    public Library(String name, ArrayList<Book> library) {
        this.name = name;
        this.library = library;
    }

    public void addBook(Book bookToAdd){
        this.library.add(bookToAdd);
    }

    public ArrayList<Book> authorSearch(String author){
        ArrayList<Book> foundBooks = new ArrayList<>();
        for(Book book: this.library){
            if(book.getAuthor().equals(author)){
                foundBooks.add(book);
                System.out.println(book);
            }
        }
        return foundBooks;
    }

    public ArrayList<Book> titleSearch(String title){
        ArrayList<Book> foundBooks = new ArrayList<>();
        for(Book book: this.library){
            if(book.getAuthor().equals(title)){
                foundBooks.add(book);
                System.out.println(book);
            }
        }
        return foundBooks;
    }

    public void removeBook(Book bookToRemove){
        this.library.remove(bookToRemove);
    }

    @Override
    public String toString() {
        StringBuilder str = new StringBuilder();
        for (Book book: this.library){
            str.append(book.toString());
            str.append('\n');
        }
        return "Library name:" + name + '\n' + str;
    }
}
class BookTest{
    public static void main(String[] args) {
        Book book1 = new Book("Harry Potter", "J.K.Rowling", "Helikon", 2000, 215223);
        Book book2 = new Book("Мечо Пух", "Алън Милн", "Биад", 2005, 246122);
        Book book3 = new Book("Под Игото", "Иван Вазов", "Нова България", 1893, 57);
        Book book4 = new Book("IT", "Steven King", "Helikon", 1990, 25623);

        ArrayList<Book> books = new ArrayList<>();

        Library library1 = new Library("Софийска библиотека", books);
        library1.addBook(book1);
        library1.addBook(book2);
        library1.addBook(book3);
        library1.addBook(book4);

        ArrayList<Book> search = library1.authorSearch("Steven King");
        for (Book book: search){
            library1.removeBook(book);
        }
        System.out.println(library1);
    }
}