Remove Duplicates From Sorted Array

public class Solution {    public int removeDuplicates(int[] A) {// Start typing your Java solution below// DO NOT write main() functionif(A.length == 0 || A.length == 1)return A.length;int position = 1;for(int i = 1; i < A.length; i++){if(A[i] != A[i - 1]){A[position] = A[i];position++;}}return position;}}