booktype.java

Java面向对象编程(随书配套源代码) 阐述了面向对象编程的思想

package chapter7.book.bookmanage;
public class BookType 
{
	int typeID;
	String typeCode;
	String typeName;
	BookType upType;
	
   //此处，省略了BookType类相关方法的实现
}