SCJP題庫第222題


Given:
10. public class Starter extends Thread{
11.   private int x = 2;
12.   public static void main(String[] args) throws Exception{
13.     new Starter().makeItSo();
14.   }
15.   public Starter(){
16.     x = 5;
17.     start();
18.   }
19. public void makeItSo() throws Exception{
20.   join();
21.   x = x - 1;
22.   System.out.println(x);
23. }
24. public void run(){x *= 2;}
25. }
What is the output if the main() method is run?
 
A. 4
B. 5
C. 8
D. 9
E. Compilation fails.
F. An exception is thrown at runhime.
G. It is impossible to determine for certain.
Ans: D

解說:

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