Re: Create a JAVA Client/Server app in 5 Minutes

From:
Lew <lew@lewscanon.com>
Newsgroups:
comp.lang.java.programmer
Date:
Tue, 14 Apr 2009 11:43:56 -0700 (PDT)
Message-ID:
<53d21ac6-99a2-4144-940f-ceae613cc3f2@z19g2000yqe.googlegroups.com>
Donkey Hottie wrote:

I'm lazy, I have to admit.

I do it this way:

List<String, List<List<String>>> list = new ArrayList() ;


'List' only takes a single type parameter. Here, you have two.

What difference does it may what I use after the "new" keyword?


The difference is what warnings you get.

The interface of "list" is all that matters.

Do I have bad habits, and why?


Yes. You save less than one second of effort in order to get a
warning.

For Pete's sake, your only physical work in writing software is
typing. What's the big deal about copy-pasting a few extra
characters? Worried that you might sprain a knuckle?

One could argue that Java should have handled this for us via some
sort of type inference, but it didn't. For one thing, Java's way
allows flexibility in using compatible type arguments that aren't
precisely the same. Whatever the reason, Java's syntax requires the
type arguments on both sides. Your laziness contributes nothing to
the code quality, in fact detracts from it, and saves negligible
effort.

If one is so anxious to cut corners, we must wonder about the quality
of one's code overall.

--
Lew

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