cocoaiphoneobjective c
I have 1 NSString *abc = @"Hardik";
i have NSMutableArray *array;
now i had written [array addobject:abc];
then i'm printing,NSLog(@"array = %@", array);
but i'm getting NULL
why?
I have declared NSMutableArray *array; in a.h file
i had set @property(nonatomic,retain)NSMutableArray *array;
@synthesize array;
and i have synthesize it but getting value NULL
I'm not able to understand it?
NSString* str = @"teststring";
NSData* data = [str dataUsingEncoding:NSUTF8StringEncoding];
Just to remind that, don't use capitalized variable name, it might affects the getters and setters not working properly.
If you generated your NSManagedObject subclasses from the data model, everything should goes fine, although it is @dynamic, setters are be implemented by coredata, and because they are already implemented, you should not change it to synthesize. At least for me, coredata returns empty object after I change @dynamic to @synthesize.
And don't forget to set the class name in the data model:
Best Answer
You also need to initialise your array:
This is pretty fundamental stuff. Have you read the "Learning Objective C Primer" yet?