class?Work?implements?Runnable?{? Thread?other;?? Work(Thread?other)?{?this.other?=?other;?}? public?void?run()?{? try?{?other.join();?}?catch?(Exception?e)?{?}? System.out.print("after?join?");? }?}? class?Launch?{? public?static?void?main(String?[]?args)?{? new?Thread(new?Work(Thread.currentThread())).start();? System.out.print("after?start?");? }?}? 結果為:()
A、after join
B、after start
C、after join after start
D、after start after join