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RE: Use a variable form an istance into another
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RE: Use a variable form an istance into another


  • Subject: RE: Use a variable form an istance into another
  • From: "Jonathan E. Jackel" <email@hidden>
  • Date: Fri, 12 Dec 2003 11:19:35 -0500

Roberto, by my count this is the third question about fundamental concepts
you've posted in the last couple of days. Cocoa can be hard to understand
at first, and I certainly don't want to censor you. But I think you would
benefit from some basic background reading about how Cocoa and C work. Your
first stop should be the FAQ:

http://www.alastairs-place.net/cocoa/faq.txt

The first section of the FAQ deals with how to learn enough to be effective
at programming in Cocoa. You will find your programming experience a lot
less frustrating if you try some of the resources listed there.

To answer your question (or rather, what I think your question is), the get
access to an instance's variables, you send the instance a message, like
[comicDataSourceInstance comicsArray]. Ordinarily an object will have
accessor methods to set and get instance variables. To save an array to a
file, use -writeToFile:atomically:, which is documented in NSArray.

Jonathan

> -----Original Message-----
> From: email@hidden
> [mailto:email@hidden]On Behalf Of Robert Cerny
> Sent: Friday, December 12, 2003 8:40 AM
> To: Roberto
> Cc: email@hidden
> Subject: Re: Use a variable form an istance into another
>
>
> Hi,
> I don't like responses like this one, but you should probably read
> following document first.
> /Developer/Documentation/Cocoa/Conceptual/ObjCTutorial/objctutorial.pdf
>
> HTH
> Robert
>
>
>
> On 12.12.2003, at 14:28, Roberto wrote:
>
> > How can I use a variable declared into an Istance in another Istance?
> >
> > example:
> >
> > @interface comicDataSource : NSObject
> > {
> > NSMutableArray * comicsArray;
> > }
> >
> > Use the NSMutableArray into another file and another Istance?
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References: 
 >Re: Use a variable form an istance into another (From: Robert Cerny <email@hidden>)

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