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. t.sleep(1000) InterruptedException
C. Thread.sleep(1000) RuntimeException
D. Thread.sleep(1000) InterruptedException