Method swap

JSAT/src/jsat/utils/QuickSort.java:72–77

(double[] array, int i, int j)

    }

    public static void swap(double[] array, int i, int j)
    {
        double tmp = array[i];
        array[i] = array[j];
        array[j] = tmp;
    }
    
    public static void swap(float[] array, int i, int j)
    {