27. Remove Element徒手尝试#2(Done)

Solution

public class Solution {    public int removeElement(int[] nums, int val) {        if (nums == null && nums.length == 0) {            return 0;        }        int i = 0;        for (int j = 0; j < nums.length; j++) {           if (nums[j] != val) {               nums[i++] = nums[j];           }        }        return i++;    }}

Problem#2
* 考虑更简单的情况

Problem#1
* 没有仔细思考