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

Android Build a Simple Android App (2014) Getting Started with Android Creating the Fun Facts Project

Denny Tang
Denny Tang
1,012 Points
Posted by Denny Tang
Denny Tang
1,012 Points

What should my package name be if my company domain is 123.com?

Using com.123.funfacts doesn't work because Android does not allow you to use digits as the first character in a package segment.

Usually you would add an _ underscore (ex. com._123.funfacts) but this isn't allowed in Android Studio

In this case, what is the standard way to name a package?

1 Answer

Ben Deitch
STAFF
Ben Deitch
Treehouse Teacher
Ben Deitch
Ben Deitch
Treehouse Teacher

That's tough. I'm not sure of a standard way for that case, and the docs doesn't provide one either. Looks like it's up to you.

Link:
The name may contain uppercase or lowercase letters ('A' through 'Z'), numbers, and underscores ('_'). However, individual package name parts may only start with letters.

Denny Tang
Denny Tang
1,012 Points
Denny Tang
Denny Tang
1,012 Points

Thanks for the quick reply Ben!

I ended up just spelling the numbers out (i.e. com.onetwothree.funfacts)