What is the primary programming language and IDE associated with Android development?

The primary programming language associated with Android development is Java, which has been a cornerstone for building Android applications for many years. Android Studio is the official Integrated Development Environment (IDE) for Android development, providing a robust set of tools specifically designed to support Java development.

This combination allows developers to efficiently create, debug, and deploy Android applications. Android Studio includes components like a code editor, a layout editor, and built-in support for version control, among other features tailored to enhance the development process for Android apps.

The other choices involve languages and IDEs that are not primarily used for Android development. Swift and Xcode are associated with iOS development, Ruby and Rails relate to web development, and JavaScript with Node.js typically focuses on server-side applications, making them less relevant to Android programming.