[tomneo2004]

Can some one help me with "@property"? I have two classes A and B , class A inherit NSObject and class B inherit class A, both classes A and B has property, now when i use setter it is fine but i got error at run time when i use getter.

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Code:

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@interface A:NSObject
{
   int ageA;
}

@property int ageA;
@end

@implement A
synthesize ageA;
@end

@interface B:A
{
   int ageB;
}

@property int ageB;
@end

@implement B
synthesize ageB;
@end

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B *instance=[[B alloc] init];

//here are fine
[instance setAgeA:97];
[instance setAgeB:200];

//here get error say Bad access
NSLog(@"A age is: %d", instance.ageA);
NSLog(@"B age is: %d", instance.ageB);

Why i get error, can i use two classes that have inheritance with @property or i can just use property for only one class.

[tomneo2004]

can some one help please

[hello24]

You'll need to use:
@synthesize ageA;

Notice the @ sign before synthesize!