（6-3）classMyThreadimplementsRunnable{_________________{//覆写run()方法for(inti=0;i<3;i++)System.out.println("当前运行的线程名称是："+Thread.currentThread().getName());}}publicclassBlank_2{publicstaticvoidmain(String[]args){MyThreadmt=newMyThread();Threadth=newThread(mt,"一个线程");__________________//启动线程for(inti=0;i<5;i++){System.out.println("main:"+i);if(i>2)//在i>2的情况下，强制运行线程try{__________________//强制运行线程}catch(InterruptedExceptione){e.printStackTrace();}}}}