Reverse a String in Java

Code for reversing a string in Java.

public static String reverse (String s) {
   int length = s.length();
   int last = length - 1;
   char[] chars = s.toCharArray();
   for (int i=0; i < length/2; i++){
       char c = chars[i];
       chars[i] = chars[last - i];
       chars[last] = c;
   }
   return new String(chars);
}