public static int[] bubbleSort(int[] data, int index)
    {
        if(index > data.length-1)
            return data;
        else
        {
            for(int count = 0; count < data.length-1; count++)
            {
                if(data[count] > data[count +1] && count + 1 <= data.length)
                {
                    int copy = data[count];
                    data[count] = data[count+1];
                    data[count+1] = copy;
                }
            }
        }
        return bubbleSort(data, index+1);
    }