Use Android Studio and Java to write Android apps How to display a second screen when a button is pressed.How to run your app on a device or in the emulator.How to use Android Studio to build your app.If you are an experienced programmer and adept at reading code, you will likely be able to follow this codelab, even if you don't have much experience with Java. This codelab is written for programmers and assumes that you know either the Java or Kotlin programming language. (If you're looking for the Kotlin version of this codelab, you can go here.) What you must know already In this codelab, you'll learn how to build and run your first Android app in the Java programming language.
