283. Move Zeroes

Given an array nums, write a function to move all 0’s to the end of it while maintaining the relative order of the non-zero elements.

For example, given nums = [0, 1, 0, 3, 12], after calling your function, nums should be [1, 3, 12, 0, 0].

Note:
You must do this in-place without making a copy of the array.
Minimize the total number of operations.

//将后面不为零的数字从头开始复制到数组的开头

public class Solution {
    public void moveZeroes(int[] nums) {
        int pos = 0;
        for(int i =0; i < nums.length; i++){
            if(nums[i]!= 0){
                nums[pos]=nums[i];
                pos++;
            }
            
        }
        
        for(;pos<nums.length;pos++){
            nums[pos] = 0;
        }
        
    }
}