原题网址:https://leetcode.com/problems/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.
方法:将非零数字移到前面,空出来的位置填上0.
public class Solution {
public void moveZeroes(int[] nums) {
int zeros = 0;
for(int i=0; i<nums.length; i++) {
if (nums[i] !=0) nums[zeros++] = nums[i];
}
for(;zeros<nums.length; zeros++) {
nums[zeros] = 0;
}
}
}

本文提供了一种解决LeetCode题目“Move Zeroes”的有效方法。通过遍历数组,将非零元素前移,再将剩余位置填充为零,以此实现零元素的集中放置,同时保持了非零元素的相对顺序。
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