2016/1/21 练习创建接口interface 应用implements 类class 并实例化调用

 1 package testinterface;
 2 
 3 public interface ICpu {
 4     //电压
 5     public boolean  dianya();
 6     //控制
 7     public void  kongzhi();
 8     //运算
 9     public void  yunsuan();
10     //存储
11     public void  cunchu();
12     
13 }

 1 public class Intel implements ICpu{
 2 
 3     @Override
 4     public boolean dianya() {
 5         System.out.println("电压正常");
 6         return true;
 7     }
 8 
 9     @Override
10     public void kongzhi() {
11         System.out.println("控制单元工作");
12         
13     }
14 
15     @Override
16     public void yunsuan() {
17         System.out.println("运算单元工作");
18         
19     }
20 
21     @Override
22     public void cunchu() {
23         System.out.println("存储单元工作");
24         
25     }

 1 package testinterface;
 2 import testinterface.ICpu;
 3 
 4 
 5 public class Computer {
 6     
 7     private ICpu cpu;
 8 
 9     public ICpu getCpu() {
10         return cpu;
11     }
12 
13     public void setCpu(ICpu intel) {
14         this.cpu = intel;
15 
16         String i="intel";
17         if( !i.equals("intel")){  
18             System.out.println("cpu不可以使用");
19             
20         }
21         else if (i.equals("intel")){
22             System.out.println("cpu可以使用");    
23         }
24         else{
25             
26         }
27 
28         
29     }
30 
31     
32         
33     
34 }

调用

 1 package testinterface;
 2 
 3 public class Testcomputer {
 4 
 5     public static void main(String[] args) {
 6         Computer in=new Computer();
 7         in.setCpu(new Intel());
 8         
 9         }
10     }

2016/1/21 练习 创建 接口interface 应用implements 类class 并实例化调用

2016/1/21 练习创建接口interface 应用implements 类class 并实例化调用