Exception in thread "main" java.lang.IndexOutOfBoundsException:

[ZiyadNass]

hii boss
I did exactly what have you said in the file name I wrote a Path of csv file and the quantum

but it say there is an Exception at
{
Exception in thread "main" java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
at java.util.ArrayList.rangeCheck(Unknown Source)
at java.util.ArrayList.remove(Unknown Source)
at Scheduler.rr(Scheduler.java:38)
at Driver.main(Driver.java:24)
}

at this specific line in Scheduler class
if (cpu == null) {
cpu = readyQueue.remove(0);
}

one more thing how can i add the
Time first process comes
,second process executed.
time last process executed.

that would help so much...
thank you