catalog.java

ssd3部分quiz、exercise、exam的参考答案

import java.util.*;

public class Catalog {
	
	ArrayList<Product> products;
	
	public Catalog() {
		products = new ArrayList<Product>();
	}

	public void addProduct(Product product){
		this.products.add(product);
	
	}
	
	public Iterator<Product> iterator() {
		Iterator<Product> temp = products.iterator();
		return temp;
	}

	public Product getProduct(String code){
		Product temp = null;
		for(Product record: products) {
			if(record.getCode().equals(code)) {
				temp = record;
				break;
			}
		}
		return temp;
	}

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