car1.java

可以让初学者有一个感性的认识

import java.io.*;
import java.util.*;

public class Car1 implements Serializable
{
	Hashtable list=new Hashtable();
	String item="Welcome!";
	int mount=0;
	String unit=null;
	
	public void Car1(){}

	public void setItem(String newItem){item=newItem;}

	public void setUnit(String newUnit){unit=newUnit;}

	public void setMount(int m){mount=m;}
	
	public void 添加商品到购物车()
	{
		String str="Name:"+item+" Mount:"+mount+" Unit"+unit;
		list.put(item,str);
	}

	public Hashtable 列出购物车中的商品(){return list;}

	public void 删除货物(String s){list.remove(s);}
}