Given two strings S and T, determine if they are both one edit distance apart.

class Solution {
    public boolean isOneEditDistance(String s, String t) {
        for (int i = 0; i < Math.min(s.length(), t.length()); i++){
            if (s.charAt(i) != t.charAt(i)){
                if (s.length() == t.length()) return s.substring(i + 1).equals(t.substring(i + 1));
                else if (s.length() > t.length()) return s.substring(i + 1).equals(t.substring(i));
                else return s.substring(i).equals(t.substring(i + 1));
            }
        }

        return Math.abs(s.length() - t.length()) == 1;
    }
}