docs: public ObjectArrayList partFromTo(int from, int to) {
  	if (size==0) return new ObjectArrayList(0);
  
  	checkRangeFromTo(from, to, size);
  
  	Object[] part = new Object[to-from+1];
  	System.arraycopy(elements, from, part, 0, to-from+1);
  	return new ObjectArrayList(part);
  }