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iOS

Posted by mads johansen
mads johansen
547 Points

error message!

Shape *shape = [[shape alloc]init] i get an error message when i type in this code. no visible @interface for 'shape' declares the selector 'alloc' any i ideas what i did wrong?

2 Answers

Gabe Nadel
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STAFF
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Gabe Nadel
Treehouse Guest Teacher
Gabe Nadel
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Gabe Nadel
Treehouse Guest Teacher

This line:

Shape *shape = [[shape alloc]init]

should read:

Shape *shape = [[Shape alloc]init];

Remember, we are saying: create an instance of the CLASS Shape, called "shape". So, on the right side of the equal sign we need to call alloc on Shape, not shape. Since we haven't actually created the instance yet - since that is what this line does - the compiler doesn't even know what "shape" is yet.

mads johansen
mads johansen
547 Points
mads johansen
mads johansen
547 Points

it worked, thank you very much! :)