After first time executing simulator should ask for user to choose scheduling

method. Menu should have at least four options.

CPU Scheduler Simulator

Scheduling Method $($None$)$

Preemptive Mode $($Off$)$

Show Result

End Program

Option $>$

a$)$ Scheduling Method: In this mode program optain scheduling method

from user. You should implement:

None: None of scheduling method chosen

First Come, First Served Scheduling

Shortest$-$Job$-$First Scheduling

Priority Scheduling

Round$-$Robin Scheduling $($You should also obtain time quantum

value$)$

b$)$ Preemptive Mode: This is a clock$-$driven mode, in which the clock is a

counter that is incremented each simulated second. The clock is

initially $0,$ and continues "ticking" until all the jobs in the input have

been serviced and left the system. This simulation runs until a

particular number of jobs have been serviced.

Non$-$preemptive Mode: In this mode dispatcher should make decision after running

process was terminated.

c$)$ Show Result: If user chooses this option, program shows report to user

from screen $($As described Step $4).$

d$)$ End Program: If user chooses this option, program show all

$($implemented$)$ scheduling results on display $($As described Step $4)$ and

also write these results to output file that given with $"-$o$"$ option and

terminate simulator.

e$)$ Appendix section has screen and file outputs. Please create same

output for your program.

Your program must gather statistics, compute, and report the following

information:

a$)$ The average waiting time that all jobs spend in the wait queue.

b$)$ The waiting time that each job spends in the wait queue.

You can get more information for CPU Scheduling methods from your text

book $($chapter $5).$ Some Scheduling methods not run in Preemptive mode. So

take care about it$.$