MD1 Queue.java in program

MD1Queue.java

public class MD1Queue

 {

    public static void main(String[] args)

{

        double lambda = Double.parseDouble(args[0]);  

        double mu     = Double.parseDouble(args[1]);  

        Histogram hist = new Histogram(60 + 1);

        Queue queue = new Queue();

        StdDraw.setCanvasSize(700, 500);

        double nextArrival = StdRandom.exp(lambda);   

        double nextService = nextArrival + 1/mu;      

        while (true)

{

           

            while (nextArrival < nextService)

           {

                queue.enqueue(nextArrival);

                nextArrival += StdRandom.exp(lambda);

            }

            double arrival = queue.dequeue();

            double wait = nextService - arrival;

            StdDraw.clear();

            hist.addDataPoint(Math.min(60,  (int) (Math.round(wait))));

            hist.draw();

            StdDraw.show(20);

            if (queue.isEmpty())

             nextService = nextArrival + 1/mu;

            else                

            nextService = nextService + 1/mu;

        }

    }

}