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Saving Data on Android

Second Edition · Android 11 · Kotlin 1.5 · Android Studio 4.2

Using Firebase

Section 3: 11 chapters
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To follow along with this book, you need:

  • Android Studio 4.1+: Available at This is the environment in which you’ll develop most of the sample code in this book. If you didn’t install it already, now is the right time to do that!
  • Java SE Development Kit 8+: Most of the code in this book will be run on the Java Virtual Machine or JVM, for which you need a Java Development Kit or JDK. The JDK can be downloaded from Oracle at
  • Kotlin Playground: You can also use the Kotlin Playground available at the Kotlin home page at
  • Android 6.0+: The minimumSdkVersion for the projects targets API 23. Therefore, you need an emulator or device running API 23 or higher.
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