Learning Java by Building Android Games - Second Edition

Introduction to Object Oriented Programming

Object-Oriented Programming (OOP) makes it easy to do exceptional things. A simple analogy could be drawn with a machine, perhaps a car. When you step on the accelerator, a whole bunch of things happens under the hood. We don't need to understand about combustion or fuel pumps because a smart engineer has provided an interface for us. In this case, a mechanical interface—the accelerator pedal.

Take the following line of Java code as an example; it will look a little intimidating:

locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER)

However, once you learn that this single line of code searches Space for the available satellites and then communicates with them in orbit around the Earth while ...