第八章章节练习

 1 package com.kgc.zzlx.zhangjie8.zj802;
 2 
 3 /**
 4  * 测试类
 5  */
 6 public class Test {
 7     public static void main(String[] args){
 8         Animal b=new Bird();
 9         Animal f=new Fish();
10         b.setName("红色");
11         b.setAge(4);
12         b.info();
13         f.setName("5斤重");
14         f.setAge(2);
15         f.info();
16 
17     }
18 }

 1 package com.kgc.zzlx.zhangjie8.zj803;
 2 
 3 /**
 4  * 测试类
 5  */
 6 public class Test {
 7     public static void main(String[] args){
 8         Printer a=new DotMatrixtPrinter();
 9         Printer b=new InkpetPrinter();
10         Printer c=new LaserPrinter();
11         a.print();
12         b.print();
13         c.print();
14     }
15 }

 1 package com.kgc.zzlx.zhangjie8.zj804.zj8081;
 2 
 3 /**
 4  * 装配测试类
 5  */
 6 public class Test {
 7     public static void main(String[] args){
 8         Shengka shengka=new Shengka();
 9         Wangka wangka=new Wangka();
10         Xianka xianka=new Xianka();
11         shengka.start();
12         wangka.start();
13         xianka.start();
14 
15         shengka.stop();
16         wangka.stop();
17         xianka.stop();
18     }
19 
20 }