下列程序的功能是在监控台上每隔一秒钟显示一个字符串"Hello!",能够填写在程序中下划线位置,使程序完整并能正确运行的语句是( )。 public class Test implements Runnable{ public static void main(String args[]){Test t=new Test();Thread tt=new Thread(t);tt.start(); }public void run(){for(;;){ try{ ________; }catch(______e){} System.out.println("Hello");} } }
A.sleep(1000) InterruptedException
B.sleep(1000) InterruptedException
C.Threasleep(1000) RuntimeException
D.Threasleep(1000) InterruptedException