title: How to add Java file to Build Path Android Studio
body: <p>I have some .java files that I'd like to include in my build path to utilize some of the classes and such inside them. I've added them to the <strong>/lib</strong> folder but it doesn't allow me to call data types and methods and such from the .java files in my <strong>app</strong> project (in the .MainActivity). How can I accomplish this?</p>