The Nexmo SMS API is a service that allows you to send and receive SMS messages anywhere in the world. Nexmo provides REST APIs, but it's easier to use their official Java SDK. This tutorial covers how to send and receive SMS messages with the SDK so that you can use them in your applications.
Android Studio 2.2 has been available in preview form since May, but this week Google made the final version available to all developers. Android Studio is the integrated development environment that Android app writers use to work their magic in creating smartphone and tablet applications.