class TestScheduler extends Thread {    public static void main(String [] args) {   	Scheduler mySched =   new RoundScheduler();   			// or new RoundRobinScheduler() - when written		// or new PriorityScheduler()  - when written    Thread p1 = new SimProc(mySched, "Alan", 4) ;//輪轉開始   	Thread p2 = new SimProc(mySched, "Brian", 4) ;	Thread p3 = new SimProc(mySched, "Charles", 4) ; 	Thread p4 = new SimProc(mySched, "Dave", 5) ;	Thread p5 = new SimProc(mySched, "Edward", 5) ;	Thread p6 = new SimProc(mySched, "Francis", 5) ;//輪轉結束	/*	Scheduler mySched =   new FifoScheduler();    Thread p1 = new SimProc(mySched, "Alan", 1) ;//優先級開始	Thread p2 = new SimProc(mySched, "Brian", 2) ;	Thread p3 = new SimProc(mySched, "Charles", 3) ; 	Thread p4 = new SimProc(mySched, "Dave", 4) ;	Thread p5 = new SimProc(mySched, "Edward", 5) ;	Thread p6 = new SimProc(mySched, "Francis", 6) ;//優先級結束*/	mySched.start();    }}