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Jasper Hamilton
501 PointsNSDictionary Challenge 3/3
The question is asking me "Let's add the year of the album to the 'albumMutable' variable. Where the key is a NSString 'year' and the value is also a NSString '1969'."
The error message is "Bummer! There is a compiler error. Please click on preview to view your syntax errors!", but when I click on view it gives me a blank area where my result/error should be.
My code is as following:
NSDictionary *album = @{ @"title":@"Abbey Road", @"artist":@"The Beatles" }; NSMutableDictionary *albumMutable = [NSMutableDictionary dictionaryWithDictionary:album]; [albumMutable setObject:@1969 forKey:"year"];
What am I doing wrong?
1 Answer
Matthew Mascioni
20,444 PointsHi Jasper,
Your problem lies in your third line:
[albumMutable setObject:@1969 forKey:"year"];
The question is telling us that the value is an NSString, as well as the key. Recall that you declare an NSString literal like this:
@"This is a string literal"
So, in your setObject parameter, you have the @ symbol, but are missing the surrounding quotes. You're also missing something in the value of your forKey parameter.
Have fun!
Jasper Hamilton
501 PointsJasper Hamilton
501 PointsOk, Thanks!