how to identify adapter odd and even number android

1@Override
2public void onBindViewHolder(ViewHolder holder, int position)
3{
4  if(position % 2 == 0) 
5  {
6     //holder.rootView.setBackgroundColor(Color.BLACK);
7     holder.rootView.setBackgroundResource(R.color.black);
8  }
9  else 
10  {
11     //holder.rootView.setBackgroundColor(Color.WHITE);
12     holder.rootView.setBackgroundResource(R.color.white);
13  }
14}