package com.sorts;
final class SortUtils {
/**
* Helper method for swapping places in array
*
* @param array The array which elements we want to swap
* @param idx index of the first element
* @param idy index of the second element
*/
static boolean swap(T[] array, int idx, int idy) {
T swap = array[idx];
array[idx] = array[idy];
array[idy] = swap;
return true;
}
/**
* This method checks if first element is less then the other element
*
* @param v first element
* @param w second element
* @return true if the first element is less then the second element
*/
static > boolean less(T v, T w) {
return v.compareTo(w) < 0;
}
/**
* Swaps all position from {@param left} to @{@param right} for {@param array}
*
* @param array is an array
* @param left is a left flip border of the array
* @param right is a right flip border of the array
*/
static > void flip(T[] array, int left, int right) {
while (left < right) {
swap(array, left++, right--);
}
}
}