Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

iOS Objective-C Basics (Retired) Advanced Objective-C Dynamic Typing

Vineet Tiwari
Vineet Tiwari
6,609 Points
Posted by Vineet Tiwari
Vineet Tiwari
6,609 Points

Shape doesn't return the area

This is what my code returns for the shape: Shape: 0x600000000d60 instead of returning the area which is a float of value -1 and I am not sure as to why that is.

1 Answer

X. Szuh
X. Szuh
2,486 Points
X. Szuh
X. Szuh
2,486 Points

It looks like you are getting the memory address of an object called Shape. Assuming you have properties width and height then Area = shape.width * shape.height. Or shape.area. Point being, are you using dot notation?