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java面向对象高级分层实例_测试类（main方法所在的类）

package bdqn.studentSys; /** * main类 * @author Administrator * */ import java.util.*; import bdqn.studentSys.Dao.StudentDao; import bdqn.studentSys.Da...

java面向对象高级分层实例_数据库操作类

package bdqn.studentSys.Dao.impl; /*** * 学生表的数据库操作类 */ import java.sql.ResultSet; import java.sql.SQLException; import java.util.ArrayList; import jav...

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java面向对象高级分层实例_BaseDao

package bdqn.studentSys.Dao; /** * 数据库帮助类 * @author Administrator * */ import java.sql.*; public class BaseDao { Connection conn=null; PreparedStateme...

java面向对象高级分层实例_实体类

package bdqn.studentSys.entity; /** * 学生实体类 * @author Administrator * */ public class Student { private String name;//姓名 private String pwd;//密码 priva...

java面向对象高级分层实例_接口类

package bdqn.studentSys.Dao; import java.util.List; import bdqn.studentSys.entity.Student; /** * 学生表的接口 * @author Administrator * */ public interface ...

java面向对象高级分层实例_BaseDao

package bdqn.studentSys.Dao; /** * 数据库帮助类 * @author Administrator * */ import java.sql.*; public class BaseDao { Connection conn=null; PreparedStateme...

Java 面向对象之匿名内部类实例 2

http://www.verejava.com/?id=16992879139164 /** 知识点: 匿名内部类题目: 摩托车上装有警报器,当有人碰到摩托车时, 警报器发出报警响声思路: 1. 抽象出类: 1.1 摩托车(Moto),报警器(Alarm), 人(Person) 2. 找出类的关...

Java 面向对象之多态实例2

http://www.verejava.com/?id=16992846385655 /** 题目: 孩子吃水果(苹果,葡萄,芒果,菠萝) 思路： 1. 抽象出类 : 孩子(Baby), 水果(Fruit)(苹果(Apple),葡萄(Grape),芒果(Mango)) 2. 找出类的关系: 水果 ...

Java 面向对象之多态实例孩子吃水果

http://www.verejava.com/?id=16992843565554 /** 题目: 孩子吃(苹果,葡萄,芒果) 思路： 1. 抽象出类 : 孩子(Baby), 苹果(Apple),葡萄(Grape) 2. 找出类的关系: 苹果,葡萄 -> 孩子 3. 找出属性: 孩子(姓名,...

Java 面向对象之接口火车票实例

http://www.verejava.com/?id=16992821172850 /** 接口的实际应用: 题目: 两个人A,B开发一个火车票显示功能A负责客户端, B负责服务器端思路: 1. 抽象出类: 1.1 客户端显示类(Terminal) 1.2 服务器端服务类(TrainServic...

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