类的构造函数继承day03

下面代码的执行结果是  F

 1 public class Child {
 2     Child(){
 3         System.out.println("Child");
 4     }
 5 }
 6 
 7 
 8 public class Boy extends Child {
 9      Boy(String type){
10          System.out.println(type);
11      }
12 }
13 
14 
15 public class Mike extends Boy {
16     Mike() {
17         super("mike");
18         new Boy("mike");
19         
20     }
21     public static void main(String[] args) {
22         new Mike();
23     }
24 
25 }
26 
27 A Compilation    falis
28 B Child     mike
29 C mike   mike
30 D Child  mike  mike
31 E An Excettion thrown at runtime
32 F Child mike Child mike

 

posted @ 2018-10-23 22:39  雪落无痕1  阅读(102)  评论(0编辑  收藏  举报