static box Main {
  main(args) {
    local x = args
    if x == null {
      x = new ArrayBox()
      x.push("default")
      if x.length() > 0 {
        local status = "initialized"
        if x.get(0) != null {
          status = "has_value: " + x.length()
        }
        print("Status: " + status)
      }
    } else if x.length() >= 0 {
      print("Length: " + ("" + x.length()))
    }
    if x == null {
      return 1
    }
    print("Final length: " + ("" + x.length()))
    return 0
  }
}