"SCJP 1.6版考題 001" 修訂間的差異

於 2013年3月30日 (六) 09:13 的最新修訂

Given: 

1. public class Threads4{ 
2.          public static void main(String[] args){ 
3.                   new Threads4.go(); 
4.           } 
5.          public void go(){ 
6.                  Runnable r = new Runnable(){ 
7.                          public void run(){ 
8.                                   System.out.print("foo");  
9.                          } 
10.                }; 
11.               Thread t = new Thread(r); 
12.               t.start(); 
13.               t.start(); 
14.         } 
15.  } 

 
What is the result? 
   A. Compilation fails. 
   B. An exception is thrown at runtime. 
   C. The code executes normally and prints "foo"; 
   D. The code executes normally, but nothing is printed.