Re: NSMutableArray is null?
Re: NSMutableArray is null?
- Subject: Re: NSMutableArray is null?
- From: Ken Thomases <email@hidden>
- Date: Tue, 31 Mar 2009 21:19:05 -0500
On Mar 31, 2009, at 9:12 PM, Pierce Freeman wrote:
Whoops, sorry I didn't put that in...
@interface Example_Class : NSObject {
IBOutlet NSTableView *tableView;
NSMutableArray *globalVariable;
}
That's not a global variable. It's an instance variable. That's a
massive conceptual error, and you should do your best to understand
why you made it before going much further. Perhaps reading Apple's
guide to Object-Oriented Programming with Objective-C would help:
http://developer.apple.com/documentation/Cocoa/Conceptual/OOP_ObjC/index.html
Next, what you showed is the declaration of the variable. The
variable is a pointer, which may point to an object. Declaring a
pointer does not allocate or initialize the object, nor make the
pointer point to the object (or anything in particular). You have to
do that separately.
Regards,
Ken
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