Create QuickSort

// Quick sort in Java

import java.util.Arrays;

class QuickSort {

  // Function to partition the array on the basis of pivot element
  int partition(int array[], int low, int high) {
    
    // Select the pivot element
    int pivot = array[high];
    int i = (low - 1);

    // Put the elements smaller than pivot on the left and 
    // greater than pivot on the right of pivot
    for (int j = low; j < high; j++) {
      if (array[j] <= pivot) {
        i++;
        int temp = array[i];
        array[i] = array[j];
        array[j] = temp;
      }
    }
    int temp = array[i + 1];
    array[i + 1] = array[high];
    array[high] = temp;
    return (i + 1);
  }

  void quickSort(int array[], int low, int high) {
    if (low < high) {

      // Select pivot position and put all the elements smaller 
      // than pivot on left and greater than pivot on right
      int pi = partition(array, low, high);
      
      // Sort the elements on the left of pivot
      quickSort(array, low, pi - 1);

      // Sort the elements on the right of pivot
      quickSort(array, pi + 1, high);
    }
  }

  // Driver code
  public static void main(String args[]) {
    int[] data = { 8, 7, 2, 1, 0, 9, 6 };
    int size = data.length;
    QuickSort qs = new QuickSort();
    qs.quickSort(data, 0, size - 1);
    System.out.println("Sorted Array in Ascending Order: ");
    System.out.println(Arrays.toString(data));
  }
}