Re: Blocks for scope control

From:

Lew <noone@lewscanon.com>

Newsgroups:

comp.lang.java.programmer

Date:

Sun, 15 Jan 2012 11:21:42 -0800

Message-ID:

<jev907$mi7$1@news.albasani.net>

Stefan Ram wrote:

Robert Klemm writes:

{ final Button button = new Button(); frame.add( button ); }

Why do you think it makes sense to replace this
frame.add( new Button() );
with the block above?

   This code (comments removed by me):

for (ThumbnailAction thumbAction : chunks) {
     JButton thumbButton = new JButton(thumbAction);
     buttonBar.add(thumbButton, buttonBar.getComponentCount() - 1);
}

   can be found in the renowned Java Tutorial at

http://docs.oracle.com/javase/tutorial/uiswing/components/icon.html

   . So such temporary names for one-time use are not
   against common teachings.

Some argue, and there's merit in the position, that the one-time name idiom
enhances code readability over the constructor-in-the-method-argument idiom.

(I also find merit in the "you ought to know Java well enough to read a
friggin' construction in an argument, for God's sake" argument, for anyone
claiming remuneration for their Java skills. Lacking such knowledge and
charging for your Java skills is fraud if the ignorance is not disclosed up
front.)

--
Lew
Honi soit qui mal y pense.
http://upload.wikimedia.org/wikipedia/commons/c/cf/Friz.jpg