Exercise_2.java

class QuickSort 
{ 
 /* This function takes last element as pivot, 
 places the pivot element at its correct 
 position in sorted array, and places all 
 smaller (smaller than pivot) to left of 
 pivot and all greater elements to right 
 of pivot */
 void swap(int arr[],int i,int j){
 //Your code here 
 }
 
 int partition(int arr[], int low, int high) 
 { 
 	//Write code here for Partition and Swap 
 } 
 /* The main function that implements QuickSort() 
 arr[] --> Array to be sorted, 
 low --> Starting index, 
 high --> Ending index */
 void sort(int arr[], int low, int high) 
 { 
 // Recursively sort elements before 
 // partition and after partition 
 } 
 
 /* A utility function to print array of size n */
 static void printArray(int arr[]) 
 { 
 int n = arr.length; 
 for (int i=0; i<n; ++i) 
 System.out.print(arr[i]+" "); 
 System.out.println(); 
 } 
 
 // Driver program 
 public static void main(String args[]) 
 { 
 int arr[] = {10, 7, 8, 9, 1, 5}; 
 int n = arr.length; 
 
 QuickSort ob = new QuickSort(); 
 ob.sort(arr, 0, n-1); 
 
 System.out.println("sorted array"); 
 printArray(arr); 
 } 
}