单选题

执行如下程序，输出结果是（&nbsp &nbsp &nbsp ） c...

Question

执行如下程序，输出结果是（      ）

class Test{
private int data
int result = 0
public void m(){
result += 2
data += 2
System.out.println(result + "  " + data)
}
}
class ThreadExample extends Thread{
private Test mv
public ThreadExample(Test mv){
this.mv = mv
}
public void run(){
synchronized(mv){
mv.m()
}
}
}
class ThreadTest{
public static void main(String args[]){
Test mv = new Test()
Thread t1 = new ThreadExample(mv)
Thread t2 = new ThreadExample(mv)
Thread t3 = new ThreadExample(mv)
t1.start()
t2.start()
t3.start()
}
}

A. 0 2
2 4
4 6

B. 2 4
2 4
2 4

C. 2 2
4 4
6 6

D. 4 4
4 4
6 6