[OT] Java generics (was: Guido sees the light: PEP 8 updated)

From	Tim Delaney <timothy.c.delaney@gmail.com>
Newsgroups	comp.lang.python
Subject	[OT] Java generics (was: Guido sees the light: PEP 8 updated)
Date	2016-04-18 08:02 +1000
Message-ID	<mailman.118.1460931049.6324.python-list@python.org> (permalink)
References	<CAN8CLg=_5oBp5ehR_NgfjQcXuM5cWajAVdKT7BytKJ93r13L0Q@mail.gmail.com>

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On 17 April 2016 at 23:38, Ian Kelly <ian.g.kelly@gmail.com> wrote:

> > Java generics ruined a perfectly good language. I mean:
>
> The diamond operator in JDK 7 makes this a lot more tolerable, IMO:
>
>     Map<AccountManager, List<Customer>> customersOfAccountManager =
>         new HashMap<>();
>

To some extent - you can't use the diamond operator when creating an
anonymous subclass, and you often need to explicitly specify the types for
generic methods. The inference engine is fairly limited.

I wouldn't say generics ruined Java - they made it better in some ways (for
a primarily statically-typed language) but worse in others (esp. that
they're implemented by erasure). I also wouldn't describe Java as a
"perfectly good language" - it is at best a compromise language that just
happened to be heavily promoted and accepted at the right time.

Python is *much* closer to my idea of a perfectly good language.

Tim Delaney

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Thread

[OT] Java generics (was: Guido sees the light: PEP 8 updated) Tim Delaney <timothy.c.delaney@gmail.com> - 2016-04-18 08:02 +1000
  Re: [OT] Java generics Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2016-04-18 20:32 +1200
    Re: [OT] Java generics Marko Rauhamaa <marko@pacujo.net> - 2016-04-18 12:11 +0300

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