344. Reverse String

Write a function that takes a string as input and returns the string reversed.
Example 1:
Input: "hello"
Output: "olleh"
Example 2:
Input: "A man, a plan, a canal: Panama"
Output: "amanaP :lanac a ,nalp a ,nam A"


class Solution {
    public String reverseString(String s) {
      char[] word = s.toCharArray();
      int i = 0;
      int j = s.length() - 1;
      while( i < j){
        char temp = word[i];
        word[i] = word[j];
        word[j] = temp;
        i++;
        j--;
      }
      
      return new String(word);
    }
}