Re: Hungarian Notation and Java

From:
lewbloch <lewbloch@gmail.com>
Newsgroups:
comp.lang.java.help
Date:
Thu, 14 Jul 2011 17:30:46 -0700 (PDT)
Message-ID:
<dd997653-1bbf-4f9c-aec1-aa1ef61b699c@r5g2000prf.googlegroups.com>
On Jul 14, 9:45 am, Lothar Kimmeringer <news200...@kimmeringer.de>
wrote:

Steve wrote:

Is there any reason left to use Hungarian notation with Java?


I asked that myself - 10 years ago - and the first time I changed
the type of a variable from int to double I answered it to myself
with a simple: no

Regards, Lothar
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Same here, only Java wasn't in the marketplace yet, and I didn't wait
to try it to conceive of that scenario.

It's a fundamental mistake to name anything in terms of implementation
type rather than domain type. For example, a bunch of invoices stored
as a 'List<String>' named 'slInvoices' is obscure, uninformative and
trenchantly stupid since the 'sl' tells nothing about the role of the
variable in the algorithm. A much better name is 'invoices', and it
can be a 'List<String>' or 'Set<Invoice>' as the implementation
demands. (The latter most likely is better.) The name reflects its
purpose, not its irrelevant implementation type.

One of the core principles of object-oriented programming is to *hide*
implementation. Hungarian notation (as commonly practiced) is the
stupid antithesis of that.

This is a very, very old debate and the winner was decided a looong
time ago.
<http://lmgtfy.com/?q=Hungarian+notation+usefulness>

--
Lew

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