Learning Java by Building Android Games

the Java Development Kit (JDK), which allows us to develop in Java

If you are planning to pursue a career or business by making Android games or any Android apps, then this book is possibly the only place to start for beginners.

It is true, however, that the VM on each platform can and usually does implement features to specifically suit the uses it is likely to be put to. A clear example of this would be mobile-device-specific features such as sensors, GPS, or the built-in camera on many Android devices. Using Java with Android, you can take photos, detect the air pressure, and work out exactly where in the world you are. Most fridge VMs probably will not do this. So you can't always just run a Java program designed for device x on device y, but the language and syntax is the same. Learning Java on Android prepares you in a large part for Java in any situation. So rest assured that Java isn't going away any time soon

In fact, as far as games are concerned, many of the alternatives to a pure Java development environment are also Java-based and require a good level of skill in Java to use.

Android developers have great prospects

Some data suggests salaries in excess of 100,000 US dollars. For more information, go to http://www.indeed.com/salary?q1=Android+Developer&l1=United+States.