题目内容

关于下列程序的功能，说法正确的是public class ko10_1 extends Thread{int n;ko10_1(){Thread td=new Thread(this);td.start();}public void run(){for (n=0;n<6;n++){try{System.out.print(n);Thread.sleep(500);}catch(InterruptedException e){ System.out.println("Exception"); }}}public static void main(String args[]){new ko10_1();}}

A. 这段程序的功能是：每隔500秒打印012345
B. 这段程序的功能是：每隔1秒打印012345
C. 这段程序的功能是：每隔半秒打印012345
D. 这段程序的功能是：每隔半分钟打印012345

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使比其自身优先级低的线程运行的Thread类的方法是：A、sleep()B、yiele()C、join()D、interrupt()

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