Design a program that allows you to experiment with different sort algorithms in Java. This program should allow
you to easily plug-in new sort algorithms and compare them. Assume that input data is generated randomly and stored in
a text file (have no less than 2000 items to sort). Do not restrict your program to only one data type, or to one ordering relationship.
The data type, ordering relationship, and the sorting method must be input parameters for your program.
It must produce a comparison chart of all implemented sort algorithms (consider both comparisons and exchanges)
(So must show how many times its compared an exchanged (swapped).
. Start with insertion, selection and bubble sorts (other sorts will be included later.
This is for Data and Algorithm. Plese, help I will upvote. I promise!
Please include this
public class BubbleSortingMain {
public static void main(String[] args) {
int array1[] =
{1,2,3,4,5,6,7,8,9,10}; // best case
int array2[]=
{10,9,8,7,6,5,4,3,2,1};//worst case
bubbleSort(array1);
bubbleSort(array2);
}
public static void bubbleSort(int[] array) {
int numberOfItems = array.length;
int comp=0,exch=0,temp=0;
boolean cont = true;
for (int pass=1; pass != numberOfItems;
pass++) {
if (cont) {
cont = false;
for (int index=0; index != numberOfItems-pass; index++) {
comp++;
if (array[index]>
array[index+1]) {
exch++;
temp = array[index];
array[index] =
array[index+1];
array[index+1] = temp;
cont = true;
}
}
}
else
break; // end outer if
}
System.out.println ("comparsion: " + comp); // end
inner if
System.out.println ("exchange: " + exch); // end inner
for
}
}
pseudocode in code comments :
public class Sorting { public static void main(String[] args) { int array1[] = {1,2,3,4,5,6,7,8,9,10}; // best case int array2[]= {10,9,8,7,6,5,4,3,2,1};//worst case bubbleSort(array1); bubbleSort(array2); int array3[] = {1,2,3,4,5,6,7,8,9,10}; // best case int array4[]= {10,9,8,7,6,5,4,3,2,1};//worst case selectionSort(array3); selectionSort(array4); int array5[] = {1,2,3,4,5,6,7,8,9,10}; // best case int array6[]= {10,9,8,7,6,5,4,3,2,1};//worst case insertionSort(array5); insertionSort(array6); } public static void printArrray(int[] array){ int numberOfItems = array.length; for(int i=0;i<numberOfItems;i++){ System.out.print(array[i] + " "); } System.out.println(); } /* In insertion sort we make space for the current element in the array , and then insert the current element at that position ALGORITHM : 1.Loop until pass = 1 to number of items 2.let key be the current element 3.For each element left to the current element , if it is greater than curr element , we exchange pass and index 4.Thus at the end of loop we ll be left with a position suitable for key 5.We insrt key into that position */ public static void insertionSort(int[] array){ System.out.println("********* INSERTION SORT ************"); printArrray(array); int numberOfItems = array.length; int comp=0,exch=0; for (int pass = 1; pass < numberOfItems; ++pass) { int key = array[pass]; int index = pass - 1; comp+=index; while (index >= 0 && array[index] > key) { exch++; array[index+1] = array[index]; index = index - 1; } exch++; array[index+1] = key; } System.out.println ("comparsion: " + comp); System.out.println ("exchange: " + exch); printArrray(array); System.out.println(); } /* In selection sort we select an element and find the minimum element on the right of that element and then exchange the element with the selected element. Hence at any stage of selection sort the left of selected element will always be sorted ALGORITHM : 1.LOOP from (0 to length of array-1) 2.let curr be the index current element store curr in temp variable minI 3.loop from curr to the end of array to find minium number if(array[index]<array[minI] minI = index 4.After inner loop exchange elements at curr and minI */ public static void selectionSort(int[] array){ System.out.println("********** SELECTION SORT ***********"); printArrray(array); int numberOfItems = array.length; int comp=0,exch=0; for (int pass=0; pass<numberOfItems-1; pass++) { int minI = pass; for (int index = pass+1; index < numberOfItems; index++) { comp++; if (array[index] < array[minI]) minI = index; } exch++; int temp = array[minI]; array[minI] = array[pass]; array[pass] = temp; } System.out.println ("comparsion: " + comp); System.out.println ("exchange: " + exch); printArrray(array); System.out.println(); } public static void bubbleSort(int[] array) { System.out.println("********* BUBBLE SORT ***********"); printArrray(array); int numberOfItems = array.length; int comp=0,exch=0,temp=0; boolean cont = true; for (int pass=1; pass != numberOfItems; pass++) { if (cont) { cont = false; for (int index=0; index != numberOfItems-pass; index++) { comp++; if (array[index]> array[index+1]) { exch++; temp = array[index]; array[index] = array[index+1]; array[index+1] = temp; cont = true; } } } else break; // end outer if } System.out.println ("comparsion: " + comp); // end inner if System.out.println ("exchange: " + exch); // end inner for printArrray(array); System.out.println(); } }
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