389. Find the Difference java

https://leetcode.com/problems/find-the-difference/

Find the Difference - LeetCode

 

class Solution {
    public char findTheDifference(String s, String t) {
        char[] s_arr = s.toCharArray();
        char[] t_arr = t.toCharArray();
        Arrays.sort(s_arr);
        Arrays.sort(t_arr);

        for (int i = 0; i < s_arr.length; i++) {
          if(s_arr[i] !=  t_arr[i]){
            return t_arr[i];
          }
        }
        return t_arr[t_arr.length-1];
    }
}