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