moveZero.cs

public class Solution {
    public void MoveZeroes(int[] nums) {
        int indexSwap = 0;
        for (int i = 0; i < nums.Length; i++)
        {
            if (nums[i] != 0)
            {
                if (i != indexSwap) 
                {
                    nums[indexSwap] = nums[i];
                    nums[i] = 0; 
                }

                indexSwap++; 
            }
        } 
    }
}