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:

1. You must do this in-place without making a copy of the array.

1. Minimize the total number of operations.

不是0的元素直接放在数组前面覆盖，最后不足的长度补0即可。

public void moveZeroes(int[] nums)
	{
		int len=nums.length;
		if(len<1)
			return ;
		
		int cnt=0;
		for(int i=0;i<len;i++)
			if(nums[i]!=0)
				nums[cnt++]=nums[i];
		
		for(int i=cnt;i<len;i++)
			nums[cnt++]=0;
		
	}