```java
package bookbuy;
import java.util.Scanner;
public class Bookmian {
public static void main(String[] args) {
BookList[] Books = getData();
putData(Books);
Ordermath[] Ordermaths = total(Books);
showOrdermath(Ordermaths);
}
public static BookList[] getData()
{
BookList Books[] = new BookList[3];
Books[0] = new BookList(1,"Java基础",29.8);
Books[1] = new BookList(2,"Jsp教程",45.0);
Books[2] = new BookList(3,"SSH框架",39.8);
return Books;
}
public static void putData(BookList[] Books)
{
System.out.println("书籍列表:");
System.out.println("------------------------------");
for(BookList b:Books)
{
System.out.println(b.toString());
}
System.out.println("------------------------------");
}
public static Ordermath[] total(BookList[] Books){
int bid = 1;
int num = 0;
double totalMoney = 0;
String choice = "";
Scanner sc = new Scanner(System.in);
Ordermath Ordermaths[] = new Ordermath[3];
Order Orders[] = new Order[3];
do{
System.out.println("请输入购买书籍序列号:");
bid = sc.nextInt();
System.out.println("请输入购买书籍数量:");
num = sc.nextInt();
Orders[bid-1] = new Order(bid,Books[bid-1],num);
totalMoney += num*Books[bid-1].getPrice();
Ordermaths[bid-1] = new Ordermath(totalMoney,Orders[bid-1]);
System.out.println("是否继续(Y|y or anykey)");
choice = sc.nextLine();
}
while(choice.equals("Y")|choice.equals("Y"));
return Ordermaths;
}
public static void showOrdermath(Ordermath[] ordermaths) {
System.out.println("订单信息:");
System.out.println("------------------------------");
for(Ordermath c:ordermaths){
if(ordermaths != null)
System.out.println(c.toString());
}
System.out.println("------------------------------");
}
}
package bookbuy;
public class BookList {
private int id;
private String name;
private double price;
public BookList(int id, String name, double price) {
super();
this.id = id;
this.name = name;
this.price = price;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public double getPrice() {
return price;
}
public void setPrice(double price) {
this.price = price;
}
public String toString() {
return id +"\t"+name +"\t"+price +"\t";
}
}
package bookbuy;
public class Order {
private int id;
private BookList sc = new BookList(1, null, 0);
private int num;
public Order(int id, BookList sc, int num) {
super();
this.id = id;
this.sc = sc;
this.num = num;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public BookList getSc() {
return sc;
}
public void setSc(BookList sc) {
this.sc = sc;
}
public int getNum() {
return num;
}
public void setNum(int num) {
this.num = num;
}
@Override
public String toString() {
return id +"\t"+sc +"\t"+num+"\t";
}
}
package bookbuy;
public class Ordermath {
private double totalMoney;
private Order sc = new Order(1, null, 0);
public Ordermath(double totalMoney, Order sc) {
super();
this.totalMoney = totalMoney;
this.sc = sc;
}
public double getTotalMoney() {
return totalMoney;
}
public void setTotalMoney(double totalMoney) {
this.totalMoney = totalMoney;
}
public Order getSc() {
return sc;
}
public void setSc(Order sc) {
this.sc = sc;
}
@Override
public String toString() {
return "sc\t";
}
}
编程一个书籍销售程序，用户输入书籍序列号进行书籍购买，用户输入购买数量后计算出所需要花费的钱，一次购买结束后，需要用户输入“Y”、“y”或其他字符，“Y”和"y"代表继续购买，其他字符代表购物结束，购买结束后显示订单信息。书籍信息和订单参考界面如下：
我的代码是定义3个类，BookList,Order,Orderimath,主函数有四个功能就是传入目录，输出目录，传入用户输入信息和计算totalmoney，输出最终信息和totalmoney，但是不知道为啥只能实现前两个
