第03章 面向对象 45总结

 

鱼欲遇雨：每日都学习一点，持之以恒，天道酬勤！不能用电脑时，提前补上！（2012.9.6）

 

1   内存分析贯穿始终

2   对象和类的概念

3   类（对象）之间的关系

4   面向对象设计的思想

5   class

6   new

       引用的概念

       构造方法的概念

7   方法重载

       构造方法的重载

8   this

9   static

10   package&import

11   private default protected public

12   extends

13   final

14   Object

        toString

        equals

15   upcasting downcasting

16   polymophysm/ dynamic binding/late

17   abstract class

18   interface

        implements

//CareOfAnimal.javapublic interface CareOfAnimal {public void feed();public void play();}class Worker implements CareOfAnimal {private String name;Worker(String name) {this.name = name;}public void feed() {System.out.println("Worker " + name + " is feeding animal");}public void play() {System.out.println("Worker " + name + " is playing with animal");}}class Peasant implements CareOfAnimal {private String name;Peasant(String name) {this.name = name;}public void feed() {System.out.println("Peasant " + name + " is feeding animal");}public void play() {System.out.println("Peasant " + name + " is playing with animal");}}class Functionary implements CareOfAnimal {private String name;Functionary(String name) {this.name = name;}public void feed() {System.out.println("Functionary " + name + " is feeding animal");}public void play() {System.out.println("Functionary " + name + " is playing with animal");}}