ios - Property Setter and Getter Not able to overwrite -

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this question has answer here:

so have objective-c header file animal class:

#import <foundation/foundation.h>  @interface animal : nsobject  @property nsstring *name; @property nsstring *favoritefood; @property nsstring *sound;  @property float weight;  -(instancetype) initwithname:(nsstring *) defaultname;  -(void) getinfo;  -(float) getweightinkg: (float) weightinlbs;  -(nsstring *) talktome: (nsstring *) myname;  -(int) getsum: (int) num1    nextnumber: (int) num2;  @end

and reason when try overwrite setter or getter methods @property nsstring *name in implementation file of animal class, not able , gives me warning saying "writable atomic property 'name' cannot pair synthesized getter user defined setter". doing wrong here? because thought @property creates ivar , setter , getter methods automatically can override in implementation file. can please me issue. thank in advance!

define properties as:

@property (nonatomic) nsstring *name; @property (nonatomic) nsstring *favoritefood; @property (nonatomic) nsstring *sound;

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