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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
Eimantas
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Anthony
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    This has been asked so many times. Please check before asking. – iNoob Feb 15 '12 at 09:20
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    Guys do not downvote such questions because: 1. It is simplier to ask then to find. 2. It allows noobs like me to answer and raise reputation. Though, Anthony you should of course use a search. – Stas Feb 15 '12 at 11:13
  • possible duplicate of [Do I still need to declare the instance variable if I am using @property?](http://stackoverflow.com/questions/8459987/do-i-still-need-to-declare-the-instance-variable-if-i-am-using-property) – jscs Feb 15 '12 at 18:42
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    also http://stackoverflow.com/questions/4903651/is-there-any-reason-to-declare-ivars-if-youre-using-properties-exclusively-in-o http://stackoverflow.com/questions/2159725/difference-between-interface-declaration-and-property-declaration http://stackoverflow.com/questions/5572114/why-declare-object-in-interface-when-used-property-in-xcode-4 – jscs Feb 15 '12 at 18:47

2 Answers2

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.

Stas
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0

As I understand it, there is no difference.

There is a good answer here: Do declared properties require a corresponding instance variable?

Community
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Warren
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