Leveraging Java Libraries
Java has as many, if not more, third-party libraries than any other modern programming language. The third-party libraries I’m referring to here are the innumerable JAR files that you can include in a server or desktop Java application—the things that the Java SDKs themselves do not provide.
In the case of Android, the Dalvik virtual machine (VM) at its heart is not precisely Java, and what it provides in its SDK is not precisely the same as any traditional Java SDK. That being said, many Java third-party libraries still provide capabilities that Android lacks natively, and therefore may be of use to you in your project (if you can get them to work with Android’s flavor of Java).
This chapter explains what ...