Move zeroes

class Solution:
    def moveZeroes(self, nums: List[int]) -> None:
        """
        Do not return anything, modify nums in-place instead.
        """
        i = 0 
        j = 0

        while i<len(nums):
            if nums[i] !=0:
                nums[j],nums[i] = nums[i],nums[j]
                j += 1 
            i += 1