leetcode26. 删除排序数组中的重复项

class  {
    public static int removeDuplicates(int[] nums) {
        int i = 0;
        for (int j = 1; j < nums.length; j++) {
            if (nums[j] != nums[i]) {
                i++;
                nums[i] = nums[j];
            }
        }
        return i+1;
    }

}