屌丝需要逆袭之学习java和算法------快速排序

 1 package iYou.neugle.sort;
 2
 3 public class Quick_sort {
 4     public static void QuickSort(double[] array, int left, int right) {
 5         if (left < right) {
 6             int i = Division(array, left, right);
 7             QuickSort(array, left, i - 1);
 8             QuickSort(array, i + 1, right);
 9         }
10     }
11
12     private static int Division(double[] array, int left, int right) {
13         double base = array[left];
14         while (left < right) {
15             while (left < right && array[right] >= base) {
16                 right--;
17             }
18             array[left] = array[right];
19             while (left < right && array[left] <= base) {
20                 left++;
21             }
22             array[right] = array[left];
23         }
24         array[left] = base;
25         return left;
26     }
27 }