This is a complete tutorial, discussing how to build a simple calculator app for Android. Check it out, and implement some of the recommended improvements.

In addition to these, Android Studio also lets users easily access code templates and also comes with easy access to GitHub — a popular hosting service for software and app development.

Open your web browser, navigate to the GitHub repository you want to clone, and then copy/paste its URL into the Android Studio dialog. Specify the local directory where you want to store the ...