comefrom: <awangdev>151. Reverse Words in a String_2.java
code: private void reverse(String[] strs) {
  
          int i = 0, j = strs.length - 1;
          while (i < j) {
              String temp = strs[i];
              strs[i++] = strs[j];
              strs[j--] = temp;
          }
      }
masked: private void var_0 ( String [ ] var_1 ) {
    int var_2 = 0 , var_3 = var_1 . length - 1 ;
    while ( var_2 < var_3 ) {
      String var_4 = var_1 [ var_2 ] ;
      var_1 [ var_2 ++ ] = var_1 [ var_3 ] ;
      var_1 [ var_3 -- ] = var_4 ;
    }
  }
  