244. Given: 
1. public class TestSeven extends Thread{
 2. private static int x； 
3. public synchronized void doThings(){
 4. int current = x； 
5. current++； 6. x = current； 
7. } 
8. public void run(){ 
9. doThings()； 
10. }
 11. } 
Which statement is true?
(A) Compilation fails.
(B) An exception is thrown at runtime.
(C) Synchronizing the run() method would make the class thread-safe.
(D) The data in variable "x" are protected from concurrent access problems.
(E) Declaring the doThings() method as static would make the class thread-safe.

答案：登入後查看
統計： A(5), B(3), C(2), D(4), E(0) #2723525