The purpose of the project is to perform a timing experiment. You are required t
ID: 3592580 • Letter: T
Question
The purpose of the project is to perform a timing experiment. You are required to complete the following activities:
(1.) Write a computer program that prompts the user for a number, creates an array for that number of random integers, and then uses the bubble sort to order the array. The program should print out the array prior to the call to the sorting algorithm and afterwards. You should write the program in Java.
(2.) Repeat 1 but use selection sort this time.
1 and 2 are primarily intended to make sure that your algorithms work.
Once you are convinced your programs work, do the following
Write a computer program that prompts the user for one number, n for the number of items in the array to sort, and create and sort 1000 arrays of this size timing the run to get an average time to sort an array of this size. Then do the following:
Initiate a variable running_time to 0
Create a for loop that iterates 1000 times.
In the body of the loop,
Create an array of n random integers
Get the time and set this to start-time. You will have to figure out what the appropriate command is in the programming language you are using to find the time
Use bubble sort to sort the array
Get the time and set this to end-time
Subtract start-time from end-time and add the result to total_time
Once the program has run, note
The number of items sorted
The average running time for each array (total_time/1000)
Repeat the process six times, using 50, 250 and 500 as the size of the array for each of the two algorithms.
Repeat 3 using selection sort.
Create a spreadsheet showing the results of 3 and 4 and create a graph to graphically represent the information. Show both sort algorithms on the same graph for comparison.
Write a one page document explaining the results, bearing in mind that both algorithms have a complexity of O(n^2) and what you know about complexity analysis. Use your knowledge of complexity analysis to explain your results.
Please submit
Program code for 1
Program code for 2
Program code used in 3 and the results of the nine program runs
Program code used in 4 and the results of the nine program runs
The spreadsheet created in 5
The report. In the report, say which machine you ran the experiments on (type of processor, RAM, etc).
(Take your time and Thank you, no rush, Please comment/document each step).
Explanation / Answer
import java.util.*; import java.lang.*; import java.io.*; import java.util.Random; class Test { public static void main (String[] args) throws java.lang.Exception { int n, c, d, swap; Scanner in = new Scanner(System.in); Random r = new Random(); System.out.println("enter number of elements to sort"); n = r.nextInt(); int array[] = new int[n]; for (c = 0; cRelated Questions
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