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iOS Object-Oriented Objective-C Getting Oriented - Object-Oriented, That Is Review NSDictionaries and NSMutableDictionaries

Posted by Nathan Bethea
Nathan Bethea
2,389 Points

~~~object-oriented objective-c Create an NSDictionary called 'artDict', with the following key/value pairs: "Artist":

I just need help, still pretty new to treehouse sorry

variable_assignment.mm 
~~~object-oriented objective-c

Create an NSDictionary called 'artDict', with the following key/value pairs: "Artist":"Dali", 
"Title":"The Ship", "Medium":"Oil Paint". Be sure to use the literal syntax.

Im having trouble understanding the question. Bellow is the code I typed to try to solve the question.
  What did i do wrong, or mess up on.


NSDictionary *artDict = @{
                          "Artist":"Dali" ,
                          "Title":"TheShip" ,
                          "Medium": "OilPaint" ,

};

1 Answer

Ukjin Lee
Ukjin Lee
7,593 Points
Ukjin Lee
Ukjin Lee
7,593 Points

NSDictionary can have only "objects", so you can't add just characters. If you change characters to NSString, you can add elements to NSDictionary. I'll add codes in below. 

NSDictionary *artDict = @{ @"Artist": @"Dali",
                          @"Title": @"The Ship" ,
                          @"Medium": @"Oil Paint"
};
Nathan Bethea
Nathan Bethea
2,389 Points

Thank you so much. :)