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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].

（ps：数字部分按照数组原顺序输出，不需要排序）

Note:

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

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