Obj-C @synthesize [duplicate]

Answer 1

n .h

    UILabel *_detailDescriptionLabel;
}
    @property (strong, nonatomic) IBOutlet UILabel *detailDescriptionLabel;

in .m

@synthesize detailDescriptionLabel = _detailDescriptionLabel;

This line means that the property "detailDescriptionLabel" will have a setter and getter for the class attribute named "_detailDescriptionLabel"

If the name was the same, you will have

@synthesize detailDescriptionLabel;