switch statement

["Kamholz, Keith (corp-staff) USX" <kk...@moog.com>]

Hey everyone,
This is more of a Java question than a Struts question, I hope you all don't
mind.

I'm just wondering if there is any way to use a String for a switch
statement, or if you are restricted to the true primitive types.
I haven't found a way, but it seems like something that lots of people would
want that wouldn't be hard for the Java developers to allow for.
Wouldn't you agree?


Keith Kamholz
Programming and Architecture
Moog Inc.

Phone: (716) 687-7001



---------------------------------------------------------------------
To unsubscribe, e-mail: struts-user-unsubscribe@jakarta.apache.org
For additional commands, e-mail: struts-user-help@jakarta.apache.org

Re: switch statement

[Erik Price <ep...@ptc.com>]

Kamholz, Keith (corp-staff) USX wrote:
> Hey everyone,
> This is more of a Java question than a Struts question, I hope you all don't
> mind.

Not really, but for future reference I have found this resource to be 
more helpful for such questions:

http://forum.java.sun.com/forum.jsp?forum=31

> I'm just wondering if there is any way to use a String for a switch
> statement, or if you are restricted to the true primitive types.
> I haven't found a way, but it seems like something that lots of people would
> want that wouldn't be hard for the Java developers to allow for.
> Wouldn't you agree?

The reason why it doesn't work is probably specific to the 
implementation of the language (maybe performance reasons), but a lot of 
people don't miss it -- nor would they agree, I suspect.  The reason is 
that you can usually add behaviors to objects so that a single 
polymorphic method call can usually eliminate all of the infrastructural 
work of writing a switch statement, so doing a switch on an object 
doens't make much sense in that context.  Of course, this is not 
applicable in all senses, such as your case with String which is final....





Erik


---------------------------------------------------------------------
To unsubscribe, e-mail: struts-user-unsubscribe@jakarta.apache.org
For additional commands, e-mail: struts-user-help@jakarta.apache.org