The only thing I have is this bill()the publisher’s name and addressA、 with…onB、 by…inC、 in…on

阅读以下说明和Java代码,将应填入( )处的字句写在答题纸的对栏内。 【说明】 现如今线下支付系统可以使用现金(Cash)、移动支付、银行卡( Card)(信用卡( Creditcard)和储蓄卡( Debitcard))等多种支付方式( PaymentMethod)对物品(tem)账单(Bill)进行支付。图 5-1 是某支付系统的略类图。

import java. util. Array List;import java. util. List;interface PaymentMethod { Public ( 1 )}∥cash、 Debitcard和ltem 实现略,ltem中getPrice( )取当前物品对象的价格abstract class Card (2) { private final String name, num; public Card(string name, String num){this.name= name; this, num = num; } @Overide public String toString ( ) { return String. format(“%s card[name = %s, num =%s}”, this. getType( ), name, num); @override public void pay(int cents) { System. out. printin(“Payed"+ cents+"cents using"+toString( )); this, execute Transaction(cents); } protected abstract String getType( ): protected abstract void execute Transaction(int cents)}class CreditCard ( 3 ) { public CreditCard(String name, String num){ (4) ;} @Override protected String getType( ){ return"CREDIT";} @Override protected void execute Transaction(int cents) { System. out. Println(cents +"paid using Credit Card. "); }} Class Bill {//包含所有购买商品的账单 private List items =new ArrayList< >( ); public void add(Item item) { items. add(item): } public intgetTotalPrice( ) {/*计算所有 item 的总价格,代码略*/} public void pay( PaymentMethod paymentMethod) {//用指定的支付方式完成支付(5) (getTotalPrice(): }}public class Paymentsystem { public void pay( ) { Bill bill =new Bill ( ); Item item1 = new Item(1234, 10); Item item2 new Item(“5678”, 40); Bill.add(item1); bill. add(item2);//将物品添加到账单中 Bill.pay(new Creditcard("LI SI”, "98765432101"))∥信用卡支付} public static void main(Stringl args) { (6) = new Paymentsystem( ); payment pay( ); }}