To make money from them, according to Patrick Mork, an executive at a leading app store for feature phones, app makers need to create Java-based apps that are free to download, and that make money ...

For more on that, check out our guide to Android development for beginners. For the purposes of this Java tutorial, it may be easier to write your code directly into a Java compiler app.

Java is the official language of Android, but you can also write apps in C or C++ using the NDK. But which language is faster on Android?