Book Image

Learning Java by Building Android Games - Third Edition

By : John Horton
5 (1)
Book Image

Learning Java by Building Android Games - Third Edition

5 (1)
By: John Horton

Overview of this book

Android is one of the most popular mobile operating systems today. It uses the most popular programming language, Java, as one of the primary languages for building apps of all types. Unlike most other Android books, this book doesn’t assume that you have any prior knowledge of Java programming, instead helps you get started with building Android games as a beginner. This new, improved, and updated third edition of Learning Java by Building Android Games helps you to build Android games from scratch. Once you've got to grips with the fundamentals, the difficulty level increases steadily as you explore key Java topics, such as variables, loops, methods, object-oriented programming (OOP), and design patterns while working with up-to-date code and supporting examples. At each stage, you'll be able to test your understanding by implementing the concepts that you’ve learned to develop a game. Toward the end, you’ll build games such as Sub Hunter, Retro Pong, Bullet Hell, Classic Snake, and Scrolling Shooter. By the end of this Java book, you'll not only have a solid understanding of Java and Android basics but will also have developed five cool games for the Android platform.
Table of Contents (24 chapters)

Chapter 2: Java – First Contact

In this chapter, we will make significant progress with the Sub' Hunter game even though this is our first lesson on Java. We will explore, in detail, exactly how Sub' Hunter will be played and the steps/flow that our completed code will need to take to implement the game.

We will also learn about how Java uses code comments to document the code, take a brief initial glimpse at methods to structure our code, and an even briefer first glimpse at Object-Oriented Programming (OOP), which will begin to reveal the power of Java and the Android API.

The autogenerated code that we referred to in Chapter 1, Java, Android, and Game Development, will also be explained as we proceed and add more code. In this chapter, we will cover the following topics:

  • Planning the Sub' Hunter game
  • Introducing Java methods
  • Structuring Sub' Hunter with methods
  • Introducing OOP
  • Using Java packages
  • Linking up the Sub' Hunter methods

First, let's do some planning.