File list (Check if you may need any files):
shop
....\bin
....\...\mybean
....\...\......\maths
....\...\......\.....\Goods.class
....\...\......\.....\GoodsList.class
....\...\......\.....\shoppingCart.class
....\ch5_6_add.jsp
....\ch5_6_book.jsp
....\ch5_6_buy.jsp
....\ch5_6_delete.jsp
....\ch5_6_minus.jsp
....\src
....\...\mybean
....\...\......\maths
....\...\......\.....\Goods.java
....\...\......\.....\GoodsList.java
....\...\......\.....\shoppingCart.java
....\WEB-INF
....\.......\classes
....\.......\.......\mybean
....\.......\.......\......\maths
....\.......\.......\......\.....\Goods.class
....\.......\.......\......\.....\GoodsList.class
....\.......\.......\......\.....\shoppingCart.class