shoppingcartitem.java

用java编写的一个简单的购书系统

package CItemClass;
public class ShoppingCartItem{
   Object item;
   int quantity;

   public ShoppingCartItem(Object anItem){
        item=anItem;
        quantity=1;
   }
  
   //增、减
   public void incrementQuantity(){
        quantity++;
   }

   public void decrementQuantity(){
        quantity--;
   }
     
   public Object getItem(){
        return item;
   }

   //数量
   public int getQuantity(){
        return quantity;
   }
   public void setQuantity(int quantity){
        this.quantity=quantity;
   }
}