Question

In general, I do my interfaces like this:

@interface Gui2UtilityCell : NSObject{
    NSString* myString;
}
@property(nonatomic,strong) NSString* mystring;

@end

In this case, the NSString* myString; is it Mandatory ? If yes, what the difference between the previous code and this one:

@interface Gui2UtilityCell : NSObject

@property(nonatomic,strong) NSString* mystring;

@end

Answer 1

If you don’t create a variable by yourself it will be created automatically. You may create the variable for your property with the name: yourPropertyName_ (in your case it will be myString_) to differentiate the instance variable and the name of property.