remove duplicates from sorted array

​​​https://leetcode.com/problems/remove-duplicates-from-sorted-array/description/

class Solution {
    public int removeDuplicates(int[] nums) {
            if(nums.length < 1) return 0;
                int len = 0;
                int cur = nums[0];
                int cur_ind = 0;
                for(int i =1; i < nums.length; ++i){
                    if(nums[i] != cur){
                        len+=1;
                        cur = nums[i];
                        cur_ind +=1;
                        System.out.println(nums[cur_ind]=cur);
                    }
                }
                Arrays.copyOfRange(nums, 0, len);
                return len + 1;
            }
}