In this assignment your are going to modify your ArraySort program from Assignment 01 to add the following sorting methods:
public void heapSort(E[] data, Comparator<? super E> compare);
public void mergeSort(E[] data, Comparator<? super E> compare);
public void quickSort(E[] data, Comparator<? super E> compare);The methods should keep track of the number of comparisons, number of swaps and the amount of time it took to sort the array. To record the time taken, your code should call System.nanoTime at the beginning of each of the methods and save the value as the start time. It should then call System.nanoTime again at the end, and print the difference between the two times. The difference may be zero if your system clock does not update the time quickly enough, but otherwise should accurately report how many nanoseconds (billionths of a second) it took to execute your code. When the sort methods complete they should report the number of comparison, swaps, and the execution time in nanoseconds.
Use the following three files, A10-1000-words.txt, A10-5000-words.txt, and A10-10000-words.txt to create Arrays of Strings, sort the arrays using the six sorting methods build a table showing the size of the array, number of comparisons, number of swaps and the amount of time it took to run for all sorting methods for the three different files.
Write up a runtime analysis of each of the six sorting methods, giving the big-O of each, and explaining how you got your results. Send your analysis to the TA together with your code. This part counts for 25% of the grade on this assignment. Even if your code doesn’t work, you should do this part to the best of your ability.
You must also build your own test code to make sure that your implementation works. Turn in your test code together with the driver and ArraySort classes.
Please thoroughly test your code and briefly discuss your testing strategy. Turn in all test code.
The assignment is due on Friday at 11:59pm. You may turn it in early. If you haven’t completed the assignment by 11:58, turn in what you have. Getting partial credit is much better then no credit.