//שליו שאולוב
public class Book_store {

	public static void main(String[] args) {

		Book b1 = new Book("fortnite", "PS4", 2018, 50.0);
		b1.upOrDownPrice(10);
		Book b2 = new Book("GTAV", "PS4", 2014, 150.0);
		b2.upOrDownPrice(-10);
		Book b3 = new Book("warzoon", "PS4", 2020, 40.0);
		b3.upOrDownPrice(10);

		int newBook=0;

		if(b1.newOrOldBook(2020)) {
			newBook++;
		}
		if(b2.newOrOldBook(2020)) {
			newBook++;
		}
		if(b3.newOrOldBook(2020)) {
			newBook++;
		}
		System.out.println("the book "+b1.getName()+" is cost "+b1.getPrice());
		System.out.println("the book "+b2.getName()+" is cost "+b2.getPrice());
		System.out.println("the book "+b3.getName()+" is cost "+b3.getPrice());
		System.out.println("there is "+newBook+" new book");

	}

}