Seller.java

package edu.mama.ls16.homework;

//订单中没有卖家ID，以卖家名字作为唯一标识
public class Seller {
private String name;

public Seller (String name) {<br />        this.name = name;<br />    }
public String getName() {<br />        return name;<br />    }
//以sep为分隔符，将Seller内容拼接成字符串<br />    public String toString(String sep) {<br />        return this.name;<br />    }
//使用Map，重写equals和hasCode方法<br />    @Override<br />    public boolean equals(Object obj) {<br />        if(this==obj)<br />            return true;                        //地址相等<br />        if(obj instanceof Seller){<br />            Seller other=(Seller)obj;<br />            if(this.name.equals(other.name))<br />                return true;                    //名称相同<br />        }<br />        return false;<br />    }
@Override<br />    public int hashCode() {<br />        return this.name.hashCode();<br />    }

}