283.移动零

class Solution {
    public void moveZeroes(int[] nums) {
        int len=nums.length,low=0,high=0;
        while(high<len){
            if(nums[high]!=0){
                swap(nums,low,high);
                low++;
            }
            high++;
        }
    }
    public void swap(int[] nums, int left, int right) {
        int temp = nums[left];
        nums[left] = nums[right];
        nums[right] = temp;
    }
}