```
public class Solution
extends Object
```
859 - Buddy Strings\. Easy Given two strings `s` and `goal`, return `true` _if you can swap two letters in_ `s` _so the result is equal to_ `goal`_, otherwise, return_ `false`_._ Swapping letters is defined as taking two indices `i` and `j` (0-indexed) such that `i != j` and swapping the characters at `s[i]` and `s[j]`. * For example, swapping at indices `0` and `2` in `"abcd"` results in `"cbad"`. **Example 1:** **Input:** s = "ab", goal = "ba" **Output:** true **Explanation:** You can swap s[0] = 'a' and s[1] = 'b' to get "ba", which is equal to goal. **Example 2:** **Input:** s = "ab", goal = "ab" **Output:** false **Explanation:** The only letters you can swap are s[0] = 'a' and s[1] = 'b', which results in "ba" != goal. **Example 3:** **Input:** s = "aa", goal = "aa" **Output:** true **Explanation:** You can swap s[0] = 'a' and s[1] = 'a' to get "aa", which is equal to goal. **Constraints:** * 1 <= s.length, goal.length <= 2 * 10⁴ * `s` and `goal` consist of lowercase letters.

public boolean buddyStrings(String s,
                            String goal)

Class Solution