问题：

[单选]

class Computation extends Thread { 
private int num； 
private boolean isComplete； 
private int result； 
public Computation（int num） { this.num = num； } 
public synchronized void run（） { 
result = num * 2； 
isComplete = true； 
notify（）； 
} 
public synchronized int getResult（） { 
while （!isComplete） { 
try { 
wait（）； 
} catch （InterruptedException e） { } 
} 
return result； 
} 
public static void main（String[] args） { 
Computation[] computations = new Computation [4]； 
for （int i = 0； i < computations.length； i++） { 
computations[i] = new Computation（i）； 
computations[i] .start（）； 
} 
for （Computation c ： computations） 
System.out.print（c.getResult（） +“ “）； 
} 
} 
What is the result？（） 

A .  The code will deadlock.
B .  The code may run with no output.
C .  An exception is thrown at runtime.
D .  The code may run with output “0 6”.
E .  The code may run with output “2 0 6 4‟.
F .  The code may ruin with output “0 2 4 6”.