How to reset counter in loop

Question

Here is my code

        int i = 0;
        while (i < 10)
        {
            i++;
            i = i % 10;
        }

The above code resets

Answer 1

Both your loops are while(true) so they play no role in the question.

That leaves: "can I make a count-down roll over without an if?"

The answer is yes, if you realy want to:

 i--;
 i = (i + 10) % 10;