Question: Please write a java program that simulates the CPU Scheduler of an operating system. The program implements the following CPU scheduling algorithms. 1. First-Come-First-Serve (FCFS)

Please write a java program that simulates the CPU Scheduler of an operating system. The program implements the following CPU scheduling algorithms. 1. First-Come-First-Serve (FCFS) 2. Shortest-Job-First (SJF) 3. Round-Robin with time slice = 3 (RR-3) 4. Round-Robin with time slice = 5 (RR-5) The program will read process burst times from a file (testdata.txt). A sample input file of four jobs is given as follows (burst time in ms).: [Begin of testdata.txt] Job1 5 Job2 3 Job3 8 Job4 6 [End of testdata.txt] Note: You can assume that (1) there are no more than 30 jobs in the input file (testdata.txt). (2) processes arrive in the order they are read from the file for FCFS, RR-2 and RR-5. (3) all jobs arrive at time 0 for SJF. Compare the average completion times of all jobs for each scheduling algorithm. Output the details of each algorithm's execution.

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