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

Create an instance of Song using the designated initializer.

I'm stuck on this quiz question - I've been round in circles for a while now!

There's three questions. First is 'use alloc and init':

Song *popSong = [[Song alloc] init];

Works fine.

Second is using the convenience constructor:

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

Works fine.

The last is using the designated initializer - and this is where I'm going wrong. My suggestion isn't correct but I have no idea why! I came up with:

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

I'm confused at this one - I can't see what I've, obviously, done wrong!



2 Answers

Holger Liesegang
Holger Liesegang
50,595 Points

Hi Steve,

sorry to say that, but

[[Song alloc] initWithSinger:@"James Brown"]

worked just fine as the solution for question 3 of 3 ( and I even c&p the relevant part of it out of your solution into the answer field)

Weird! Didn't work for me! :-)