购物车-isp做购物

package shop; public class Bookinfo{ String bookname; String author; String publichouse; float price; int id; int quantity; public Bookinfo() { bookname=""; author=""; publichouse=""; } public void setBookname(String s) { bookname=s; } public String getBookname() { return bookname; } public void setAuthor(String s) { author=s; } public String getAuthor() { return author; } public void setPrice(float s) { price=s; } public float getPrice() { return price; } public void setQuantity(int s) { quantity=s; } public int getQuantity() { return quantity; } public void setId(int s) { id=s; } public int getId() { return id; } public void setPublichouse(String s) { publichouse=s; } public String getPublichouse() { return publichouse; } }