Getting Data from the Web

Question

Challenge task 3 of 3

Create an array called booksArray with the objects book1 and book2

NSDictionary *book1 = [NSDictionary dictionaryWithObjectsAndKeys:@"Art of War",@"Title",@"Sun Tzu",@"Author", nil]; NSDictionary *book2 = [NSDictionary dictionaryWithObjectsAndKeys:@"Brave New World",@"Title",@"Aldous Huxley",@"Author", nil];

My code for #3:

self.books = [NSArray arrayWithObjects:book1,book2, nil];

Result:

Bummer! Make sure you created an array with the correct variable name, and check your syntax!

Answer 1 · 2014-09-12T14:46:22Z

September 12, 2014 2:46pm

Details matter a lot. The challenge is 'Create an array called booksArray with the objects book1 and book2'. So the array should be named booksArray and not self.books.

Here is the complete code:

    NSDictionary *book1 = [NSDictionary dictionaryWithObjectsAndKeys:@"Art of War", @"Title", @"Sun Tzu", @"Author", nil];
    NSDictionary *book2 = [NSDictionary dictionaryWithObjectsAndKeys:@"Brave New World'", @"Title", @"Aldous Huxley", @"Author", nil];
    NSArray *booksArray = [NSArray arrayWithObjects: book1, book1, nil];

or, in a compact form:

NSDictionary *book1 = @{
                            @"Title":@"Art of War",
                            @"Author":@"Sun Tzu"
                            };
NSDictionary *book2 = @{
                            @"Title":@"Brave New World'",
                            @"Author":@"Aldous Huxley"
                            };
NSArray *booksArray = @[book1, book2];

Answer 2 · 2014-09-12T15:05:26Z

September 12, 2014 3:05pm

Thanks bud!

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Getting Data from the Web

2 Answers

 Vladimir Cezar

 Vladimir Cezar

 Vladimir Cezar

 Vladimir Cezar

busterlabs

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