[sbov]

In at least Java, and probably more languages, you can also use braces to limit variable scope. E.g.:

  List<String> lines;
  {
    int whatever;
    lines = new ArrayList<>();
    // modify lines
  }

  List<Object> processed_data;
  {
    int whatever;
    processed_data = new ArrayList<>();
    // modify processed_data, using lines
  }

[fishywang]

In Go something similar to this is actually more common because of `defer`, e.g.:

    if err := func() error {
      f, err := os.Open(filename)
      if err != nil {
        return err
      }
      defer f.Close()
      // work with f
      return nil
    }(); err != nil {
      return err
    }

[maxxxxx]

I do this a lot in unit tests where a pattern is repeated.