Week 1 344. Reverse String

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