Java中的try/catch/finally

样例1：

 1 public class Test{
 2     public static String output = "";
 3     public static void foo(int i){
 4         try{
 5             if(i == 1){
 6                 throw new Exception();
 7             }
 8         }catch(Exception e){
 9             output += "2";
10             return ;
11         }finally{
12             output += "3";
13         }
14         output += "4";
15     }
16 
17     public static void main(String[] args){
18         foo(0);
19         foo(1);
20         System.out.println(output);
21     }
22 }

输出：3423

说明：try之后并定执行finally，finally如果没有返回，则会继续执行下面的代码

样例2： 

 1 public class Test{
 2     public static String output = "";
 3     public static void foo(int i){
 4         try{
 5             if(i == 1){
 6                 throw new Exception();
 7             }
 8         }catch(Exception e){
 9             output += "2";
10         }finally{
11             output += "3";
12         }
13         output += "4";
14     }
15 
16     public static void main(String[] args){
17         foo(0);
18         foo(1);
19         System.out.println(output);
20     }
21 }

输出：34234

 

posted @ 2016-04-13 13:44  hu983  阅读(135)  评论(0)  编辑  收藏  举报