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

write a subclass named RoundButton which inherits from Button.

inheritance

1 Answer

I don't know what you're looking for here as there's not much to go on. However, you seem to have an existing class called Button and want to make a subclass called RoundButton.

That should look something like:

class RoundButton: Button {
 // code in here
}

So, you define a class, called it RoundButton then say that it is inheriting from the Button class by adding a colon then the class name.

I hope that helps.

Steve.