Java中的try/catch/finally

样例1：

 public class Test{
     public static String output = "";
     public static void foo(int i){
         try{
             if(i == 1){
                 throw new Exception();
             }
         }catch(Exception e){
             output += "2";
             return ;
         }finally{
             output += "3";
         }
         output += "4";
     }

     public static void main(String[] args){
         foo(0);
         foo(1);
         System.out.println(output);
     }
 }

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：

 public class Test{
     public static String output = "";
     public static void foo(int i){
         try{
             if(i == 1){
                 throw new Exception();
             }
         }catch(Exception e){
             output += "2";
         }finally{
             output += "3";
         }
         output += "4";
     }

     public static void main(String[] args){
         foo(0);
         foo(1);
         System.out.println(output);
     }
 }

输出：34234