catalog.java

ssd3 exercise2 的题目和答案

// Decompiled by Jad v1.5.8f. Copyright 2001 Pavel Kouznetsov.
// Jad home page: http://www.kpdus.com/jad.html
// Decompiler options: packimports(3) 
// Source File Name:   Catalog.java

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

public class Catalog
    implements Iterable
{

    public Catalog()
    {
        products = new ArrayList();
    }

    public void addProduct(Product product)
    {
        products.add(product);
    }

    public Iterator iterator()
    {
        return products.iterator();
    }

    public Product getProduct(String s)
    {
        for(Iterator iterator1 = products.iterator(); iterator1.hasNext();)
        {
            Product product = (Product)iterator1.next();
            if(product.getCode().equals(s))
                return product;
        }

        return null;
    }

    public int getNumberOfProducts()
    {
        return products.size();
    }

    private ArrayList products;
}