catalog.java

这是一个coffee店管理系统,Gourmet咖啡是一个商店

import  java.util.*;


class Catalog 
{
	private Vector p;

	public Catalog(){
		 p = new Vector();	
	}

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

	public Product getProduct(String code){
		for (Iterator i = getProductsIterator(); i.hasNext();) {
			
			Product product = (Product) i.next();
			
			if (product.getCode().equals(code)) {
				
				return product;
			}
		}
		
		return null; 
	}

	public Iterator getProductsIterator(){
		return p.iterator();
	}

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