class Book {

	 String bookTitle;
	 String author;
	 String isbn;
	 int numOfCopies ;

	public String getBookTitle() {
		return bookTitle;
	}
	public void setBookTitle(String bookTitle) {
		this.bookTitle = bookTitle;
	}
	public String getAuthor() {
		return author;
	}
	public void setAuthor(String author) {
		this.author = author;
	}
	public String getIsbn() {
		return isbn;
	}
	public void setIsbn(String isbn) {
		this.isbn = isbn;
	}
	public int getNumOfCopies() {
		return numOfCopies;
	}
	public void setNumOfCopies(int numOfCopies) {
		this.numOfCopies = numOfCopies;
	}
	public Book(String bookTitle, String author, String isbn, int numOfCopies) {
		super();
		this.bookTitle = bookTitle;
		this.author = author;
		this.isbn = isbn;
		this.numOfCopies = numOfCopies;
	}
	public Book() {
		super();
		// TODO Auto-generated constructor stub
	}


	void display(){
		System.out.println("bookTitle: "+ bookTitle+ " :");
	}


}
class BookStore {
	private Book[] books;
	private int size;
	private int index = 0;

	public BookStore(int size) {
		this.size = size;
		books = new Book[size];
	}

	void addBook(Book book) {
		if (index >= size) {
			System.out.println(" cant add the book");
			return ;
		}
		books[index++] = book;
	}

	void sell(String bookTitle, int noOfCopies) {

	}

	void order(String isbn,String bookTitle,  int nofOfCopies) {

	}

	void display() {

	}

}
public class Q2 {

	public static void main(String[] args) {
		// it have 0 book
		Book[] books = new Book[10];
		int i = 0;
		for (Book book : books) {
			books[i] = new Book("book" + i, "author" + i, "isbn" + i, i + 10);
			i++;
		}

		for (Book book : books){
			book.display();
		}


	}
}