comefrom: <awangdev>Reverse String_1.java
code: public void reverseString(char[] s) {
          if (s == null || s.length <= 1) {
              return;
          }
          
          int n = s.length;
          for (int i = 0; i < n / 2; i++) {
              char temp = s[i];
              s[i] = s[n - i - 1];
              s[n - i - 1] = temp;
          }
      }
masked: public void var_0 ( char [ ] var_1 ) {
    if ( var_1 == null || var_1 . length <= 1 ) {
      return ;
    }
    int var_2 = var_1 . length ;
    for ( int var_3 = 0 ;
    var_3 < var_2 / 2 ;
    var_3 ++ ) {
      char var_4 = var_1 [ var_3 ] ;
      var_1 [ var_3 ] = var_1 [ var_2 - var_3 - 1 ] ;
      var_1 [ var_2 - var_3 - 1 ] = var_4 ;
    }
  }
  