The truth is that [Kerimil] didn’t spend forever learning Java and programming the app. Instead he’s showing off the power of App Inventor to get your Android controls up and running fast.

Java Database Connectivity (JDBC) is an application program interface (API) packaged with the Java SE edition that makes it possible to standardize and simplify the process of connecting Java ...

Oracle purchased WebGain's TopLink, a tool that speeds the building of software by connecting Java software code with databases. TopLink will be a free download.