cart.java

java 开发工具书上的一些代码

package com.netbeans.web;

import java.util.*;
public class Cart {
    private Hashtable cartHash=new Hashtable();
    public Cart() {
    }    
    public Hashtable getGoods() {
        return this.cartHash;
    }
    
    public void addGoods(String goodnun) {
        String no=goodnun.trim();
        if(this.cartHash.containsKey(no)){
            int num=Integer.parseInt(cartHash.get(no).toString());
            cartHash.put(no,num+1);
        }else{
            cartHash.put(no,1);
        }
    }    
}