BooksBean.java

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package webtiersample;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;


public class BooksBean {

    private List<BookBean> books;    


    public BooksBean() {
        books = new ArrayList<BookBean>();
        books.add(new BookBean("Harry Potter and the Sorcerer's Stone",
                                "J.K. Rowling",
                                "10009001",
                                12.99));
        books.add(new BookBean("Dune",
                                "Frank Herbert",
                                "98111012",
                                15.99));
        books.add(new BookBean("The Hitchhiker's Guide to the Galaxy",
                                "Douglas Adams",
                                "11001199",
                                13.99));
    }    


    public List<BookBean> getBooks() {
        return books;
    }    
    
    public double getTotalCost() {
        double cost = 0.0;
        for (Iterator<BookBean> i = books.iterator(); i.hasNext(); ) {
            BookBean book = i.next();
            cost += (book.getQuantity() * book.getPrice());     
        }
        
        return cost;
    }      
}