RE: Vector question -- JAVA400-L

Joe,

   Its true that this is unneeded, but it has been my
experience that this vastly improves the readability
of your code and it doesn't cause any extra overhead.
I personally think it is a good habit to get into, and
your thank yourself for it six months from now when
you go back to edit your code.

  Anyway just throwing in my two cents worth.

--- Joe Teff <JoeTeff@earthlink.net> wrote:
> Your coding is fine. Using the "this" keyword is
> redundant unless you have a
> local variable with the same name as a global
> variable and you want to refer
> to the global variable. It's not broken, just
> unneccessary. "this" always
> refers to the current object.
> 
> Joe Teff
> 
> -----Original Message-----
> From: owner-java400-l@midrange.com
> [mailto:owner-java400-l@midrange.com]On Behalf Of
> Stone, Brad V (TC)
> Sent: Monday, March 05, 2001 3:54 PM
> To: 'JAVA400-L@midrange.com'
> Subject: RE: Vector question
> 
> 
> Ok, here's what I did...  I made a method in
> MyClassList that looks like
> this:
> 
> public MyClass getMyClass(int index)
> {
>   return (MyClass) this.MyClassList.get(index);
> }
> 
> This worked, I just want to make sure this is ok to
> do it this way (mainly
> the casting part).
> 
> Brad
> 
> 
> > -----Original Message-----
> > From: Fred Kulack [mailto:kulack@us.ibm.com]
> > Sent: Saturday, March 03, 2001 6:24 PM
> > To: JAVA400-L@midrange.com
> > Subject: RE: Vector question
> >
> >
> >
> > The only thing I'd add is that
> > this line of code really is bad.
> >
> > >> if ((MyClass)(list.paintOptions.get(x)).isBlue)
> > I hope this was just a simple example.
> >
> > You really want to encapsulate the fact that your
> > 'MyClassList' has any particular implementation in
> > it.
> >
> > In your small example, any users of MyClassList
> > know and use the Vector it contains. (This is
> > sort of pointless, they might as well just
> > use the vector directly. 8-)).
> >
> > The MyClassList needs to provide a "public MyClass
> get(something)",
> > that way the get() method handles all the details
> and
> > you can change it to use a different underlying
> > implementation or contained objects at any time.
> >
> >
> >
> > "The stuff we call "software" is not like anything
> that human society
> >   is used to thinking about. Software is something
> like a machine, and
> >   something like mathematics, and something like
> language, and
> >   something like thought, and art, and
> information...
> >   but software is not in fact any of those other
> things."
> > Bruce Sterling - The Hacker Crackdown
> >
> > Fred A. Kulack  -  AS/400e  Java and Java DB2
> access, Jdbc,
> > JTA, etc...
> > IBM in Rochester, MN  (Phone: 507.253.5982   T/L
> 553-5982)
> > mailto:kulack@us.ibm.com   Personal:
> mailto:kulack@bresnanlink.net
> > AOL Instant Messenger: Home:FKulack 
> Work:FKulackWrk
> >
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=====
Eric Merritt
Information Systems Consultant
McCormack & Associates, Inc.
Rock Hill, South Carolina
(V) 803-327-3358 X 225
eric@mccinc.com
http://www.mccinc.com/

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