Android : When you zip a project in Android Studio, does the apk file also get included?

I noticed that on the left side of Android Studio(Beta) 0.8.0, there wasn't a .apk file listed. I already zipped the entire directory where my project is, but I'm just wondering, did the apk file also get zipped? Thanks!

EDIT: I've done "Build", then "Make Project" as suggested by the answer below. But I still can't find the apk file! Here's what I see on my screen: