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iOS Build a Blog Reader iPhone App Data Modeling Using a Custom Class

Florian Grummel
Florian Grummel
5,424 Points
Posted by Florian Grummel
Florian Grummel
5,424 Points

Why are these two answers wrong?

For the convenience constructor I typed the following code:

Song *popSong = [Song songWithSinger: @"James Brown"];

Relating to the video and a little test in xcode, this definition should work. But the quiz doesn't accept that..

Same issue for the initialiser initWithSinger. I typed:

Song *popSong = [[Song alloc] initWithSinger: @"James Brown"];

but this line is also not correct...

btw: i love your tutorials, you're doing a great job! ;)

2 Answers

Holger Liesegang
Holger Liesegang
50,595 Points
Holger Liesegang
Holger Liesegang
50,595 Points

Hallo Florian,

Your solution for the second question "Create an instance of the Song class with the convenience constructor songWithSinger:(NSString *)s and singer named "James Brown"." 

Song *popSong = [[Song alloc] initWithSinger:@"James Brown"];

seems IMHO to be correct.

Your answer for the third question "Create an instance of the Song class with the convenience constructor songWithSinger:(NSString *)s and singer named "James Brown"." seem to be ok, too:

Song *popSong = [Song songWithSinger:@"James Brown"];

I tested both answers and they ran through the Quiz. Maybe the quiz had some trouble with a space or semicolon? Try C&P my above answers (without the first part and the semicolon, of course) - does this work?

Florian Grummel
Florian Grummel
5,424 Points
Florian Grummel
Florian Grummel
5,424 Points

Hallo Holger,

Yes, it just worked fine. Thank you very much for your support :) Indeed your solution helped me solving this quiz even if I still have no idea what I did wrong. :D

the less you think about it the more it makes sense... but there might have been trouble using spaces between : and @

Holger Liesegang
Holger Liesegang
50,595 Points
Holger Liesegang
Holger Liesegang
50,595 Points

Gern geschehen - your're welcome :)