quicksort « Sort « Java Collection Q&A

1. Quicksort not working    stackoverflow.com

This is all my code for my quicksort method, it works on a set of 21 numbers, but not on my real data set, which is about 100000. I have no ...

2. Quicksort not sorting    stackoverflow.com

So I am trying to create a quicksort method, however, it is not sorting properly. Heres my input and output
Original array:
80.0 10.0 50.0 70.0 60.0 90.0 20.0 30.0 40.0 0.0
Sorted array:
0.0 ...

3. How does this quicksort algo work?    stackoverflow.com

private static char[] quicksort (char[] array , int left , int right) {
    if (left < right) {
        int p = ...

4. about Quick Sort    stackoverflow.com

Hi I have written this code but it will print these stack traces in the console please help me thanks! (Aslo "p" and "q" are the first and last index of ...

5. java programming    stackoverflow.com

hey i am unable to understand the logic and program of Quicksort...can u help...

6. Why is my quick sort so slow?    stackoverflow.com

I am practicing writing sorting algorithms as part of some interview preparation, and I am wondering if anybody can help me spot why this quick sort is not very fast? ...

7. How do I "glue" the sorted partition back to a sorted one? (Quick Sort Java Implementation)    stackoverflow.com

I have tested that my partitioning algorithm works well, but when it comes time in the implementation to make use of it, I get an array that is not sorted. ...

8. Quick Sort vs Selection Sort (Java vs C++)    stackoverflow.com

I created two projects. One in C++ and one in Java. I did time trials for a QuickSort and SelectionSort for both. Oddly enough I found some very strange behavior. Here were ...

9. Some issues in implementing QuickSort in java    stackoverflow.com

Here is my code:

public class Main
{
    public static void main(String[] args)
    {
        int[] temp = {4,2,6,4,5,2,9,7,11,0,-1,4,-5};
   ...

10. Java Quicksort pivot selection    stackoverflow.com

So when selecting the pivot in different ways I've run into stack overflow errors when selecting anything but the last element in the incoming arraylist. On the "median of 3" ...

11. Quick Sort - not working properly can you please find where i am missing the logic    stackoverflow.com

class test
 {
     static int arr[]={1,6,3,4,5,8,11};
     static int s=0,temp=0,e=0;
   public static void main(String [] args)throws Exception
   {
   ...

12. Quick-sort in Java using Comparable    stackoverflow.com

I was asked to improve given quick-sort algorithm:

public void quickSort(Comparable[] a, int left, int right) {
// Sort a[left…right] into ascending order.
    if (left < right) {
  ...

13. Cannot Figure Out Why This QuickSort Does Not Work    stackoverflow.com

I do not know why this QuickSort method I wrote does not work. It still displays the data but not in sorted order. The way I have implemented this method must ...

14. help with multiple sorting quicksort    forums.oracle.com

flounder wrote: If you sort a list by criteria 1, then sort by criteria 2, you have lost the order created by sort 1. Thus you just wasted time and effort doing sort 1. Not entirely. If the sorts are stable sorts, i.e. they preserve the order of "equal" elements, then what that does is to order the list by criteria-1 ...