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busterlabs
9,276 PointsMaster Detail
My code for Challenge #1 and #2:
NSArray *booksArray = [NSArray arrayWithObjects:@"Hamlet", @"King Lear", @"Othello", @"Macbeth", nil];
NSString *bookTitle = booksArray[2];
Challenge # 3
Now make the 'bookTitle' upper case.
My code for #3:
NSString *bookTitle = [[booksArray objectAtIndex:2] uppercaseString];
Result:
Bummer! You need to call a method on the instance variable 'bookTitle'.
Been stuck on this challenge for a few days already and nobody seems to know why this code is not working for me and does for others
2 Answers
Stone Preston
42,016 PointsWithout looking at the actual challenge I cant tell you exactly whats wrong, but I have a hunch:
NSString *bookTitle = booksArray[2];
here you create a string object named bookTitle. in task 3 you need to modify that SAME variable so you would use:
[bookTitle uppercaseString];
putting that together gives you:
NSString *bookTitle = booksArray[2];
[bookTitle uppercaseString];
before you were doing this
NSString *bookTitle = booksArray[2];
NSString *bookTitle = [[booksArray objectAtIndex:2] uppercaseString];
which defines and assigns a variable named bookTitle, then redefines and assigns it again. While technically this would work, the challenge wanted you to modify the variable you created in the previous task, not redefine it.
busterlabs
9,276 PointsThanks Stone Preston! You're the man!