package dbj.pjama;

import org.opj.*;
import java.util.Iterator;

public class Bookshop {
    public static void listBooks () {
	Iterator iter = Book.books ();
	while (iter.hasNext ()) {
	    Book b = (Book) iter.next ();
	    System.out.println (b);
	}
    }

    public static void addBook (String isbn, String title) {
	Book b = new Book (isbn);
	b.setTitle (title);
    }

    public static void main (String[] args) {
	if (args.length == 0)
	    listBooks ();
	else if (args.length == 2) {
	    addBook (args[0], args[1]);
	    OPRuntime.checkpoint ();
	}
    }
}