我有兩個定時器來管理FIFO隊列的輸入(en-queue)和輸出(出隊),但我不斷收到出隊java.lang.IllegalStateException異常:定時器已經取消。我不能停止調試錯誤聲稱發生線83.我不知道我錯過了什麼,所以任何幫助,將不勝感激。定時器已經取消
import java.util.Random;
import java.util.Timer;
import java.util.TimerTask;
/**
* RunSim
*/
public class RunSim {
private double arrivalRate = 600;
private double y;
private Timer t;
private Timer t2;
private Queue fifoQueue;
private long xy;
private long fact = 10;
private int count;
private int pId;
public RunSim() {
Random r = new Random();
long n = System.currentTimeMillis();
r.setSeed(n);
double i = r.nextDouble();
y = ((1/arrivalRate) * (Math.log(i)));
xy = (long) y;
t = new Timer();
t2 = new Timer();
fifoQueue = new Queue();
count = 0;
pId = 0;
}
public static void main() {
RunSim rs = new RunSim();
rs.start();
}
public void start() {
class sendPacket extends TimerTask {
public void run() {
Packet p = new Packet();
p.setId(pId);
fifoQueue.insert(p);
p.setArrivalTime();
System.out.println("ID: " + p.getId() + " Arrival Time: "
+ p.getArrivalTime()/fact);
pId++;
}
}
class removePacket extends TimerTask {
public void run() {
fifoQueue.first().setDepartureTime();
System.out.println("ID: " + fifoQueue.first().getId()
+ " Departure Time: "
+ fifoQueue.first().getDepartureTime()/fact);
fifoQueue.remove();
}
}
while (count < 1000) {
long v = fact * (1 + Math.abs(xy));
t.schedule(new sendPacket(), 0, v);
count++;
t2.schedule(new removePacket(), 5, 5);
}
}
}
而異常的完整堆棧跟蹤是...?第83行是...? –
java.lang.IllegalStateException:計時器已經取消。 \t在java.util.Timer.sched(Timer.java:354) \t在java.util.Timer.schedule(Timer.java:222) \t在RunSim.start(RunSim.java:83) \t在RunSim.main(RunSim.java:47) 83行:t2.schedule(new removePacket(),5,5); – Vhas