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 7: Making Decisions with Java If, Else, and Switch

Welcome to the final part of the first game. By the end of this chapter, you can say you have learned most of the basics of Java. In this chapter, we will learn more about controlling the flow of the game's execution, and we will also add the finishing touches to the Sub' Hunter game to make it playable.

In this chapter, we will cover the following topics:

  • An example to help us remember how to use if and else
  • Using switch to make decisions
  • How to combine multiple types of Java control flow options
  • Making sense of screen touches
  • Finishing the Sub' Hunter game

Another way we get to use expressions and the decision-making operators is with Java's if, else, and switch keywords. These are just what we need to give our games clear and unambiguous instructions.