CC

CC 1.2

public class solution {
  public void reverse(String s) {
    int len = s.length(); //len = 5
    //abcde
    //ebcda
    //edcba
    if (s > 0) {
      for (int i = 0; i < len/2; i++ ) {
        char temp = s.charAt(i);  //i = 0 temp = a
        int pos = len - i - 1; //pos = 4
        s.charAt(i) = s.charAt(pos); //a -> e
        s.charAt(pos) = temp; // e -> a
    }
  }
}
}