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1. Introduction to Android > 1.1. Introduction

1.1. Introduction

Welcome to Android app development! We hope that you’ll find working with Android How to Program to be an informative, challenging, entertaining and rewarding experience. This portion of the book is geared toward Java programmers. We use only complete working apps, so if you don’t know Java but have object-oriented programming experience in another language, such as C#, Objective-C/Cocoa or C++ (with class libraries), you should be able to master the material quickly, learning Java and Java-style object-oriented programming as you learn Android app development. In addition, we’ve provided a friendly, rich introduction to Java in the appendices.

The book uses an app-driven approach—we discuss each new technology in the context of complete working Android apps, with one app per chapter. We describe the app and test-drive it. Next, we briefly overview the key Eclipse (integrated development environment), Java and Android SDK (Software Development Kit) technologies we’ll use to implement the app. For apps that require it, we walk through designing the GUI visually using Eclipse. Then we provide the complete source-code listing, using line numbers, syntax shading (to mimic the syntax coloring used in the Eclipse IDE) and code highlighting to emphasize the key portions of the code. We also show one or more screen shots of the running app. Then we do a detailed code walkthrough, emphasizing the new programming concepts introduced in the app. The source code for all of the book’s apps can be downloaded from www.deitel.com/books/AndroidHTP/. Figure 1.1 lists key online Android documentation.


  

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