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Basic Data Structures and Algorithms Homework Exercises
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Recommended: Three basic structures of programming
/* CS 113 - Basic Data Structures and Algorithms
* Homework Exercises (70 points)
* *
* Homework #6
*
*
* 1. Programming Projects 5, Page 241
*
* Problem Statement:
* An operating system assigns jobs to print queues based on the number of pages to be printed
* (less than 10 pages, less than 20 pages, or more than 20 pages). You may assume that the
* system printers are able to print 10 pages per minute. Smaller print jobs are printed before
* larger print jobs, and print jobs of the same priority are queued up in the order in which
* they are received. The system administrator would like to compare the time required to process
* a set of print jobs using one, two, or three system printers.
*
* Write a program to simulate processing 100 print jobs of varying lengths using one, two, or
* three printers. Assume that a print request is made every minute and that the number of pages
* to print varies from 1 to 50 pages.
*
* The output from your program should indicate the order in which the jobs were received, the
* order in which they were printed, and the time required to process the set of print jobs.
* If more than one printer is being used, indicate which printer each job was printed on.
*
* Step by Step:
* 1. Import packages from the library.
* 2. Class named PrintTest.
* 2A. Instantiate our constants.
* 2B. Queue handles less than 10 pages.
* 2C. Queue handles less than 20 pages.
* 2D. Queue handles between 21 to 50 pages.
* 2E. The number of print jobs.
* 2F. The maximum number of pages per print job.
* 2G. The printer speed (PPM).
* 2H. Print job queue.
* 2I. Print job queue.
* 2J. Queue of 10.
* 2K. Que...
... middle of paper ...
...ystem.out.println("Size: " + printJob.getNumOfPages());
q10.offer(printJob);
}
else if(printJob.getNumOfPages() < QUEUE20)
{
System.out.println("Queue: " + QUEUE20);
System.out.println("Adding: " + printJob.getName());
System.out.println("Size: " + printJob.getNumOfPages());
q20.offer(printJob);
}
else if(printJob.getNumOfPages() <= QUEUE50)
{
System.out.println("Queue: " + QUEUE50);
System.out.println("Adding: " + printJob.getName());
System.out.println("Size: " + printJob.getNumOfPages());
q50.offer(printJob);
}
else
{
throw new QueueException("Can't process this print job.");
}
}
// 2W. Creates a random number of pages from 1 to 50.
public static int RandomNumberPages()
{
Random r = new Random();
int numOfPages = r.nextInt(MAXPAGES - 1) + 1;
return numOfPages;
}
}