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It is traditional in books covering programming topics to provide a very simple example early on. This practice, though still common, has been maligned by some authors of recent books. Those authors, however, are missing the point of the simple example. One key purpose of such an exercise is to provide a very simple way to verify that your development environment is correctly installed and fully operational before moving on to more complex tasks. A secondary objective is to give the reader a quick success very early in the learning curve to inspire an initial level of confidence. There is very little to be gained by plunging into complex examples that confuse the reader before we have taken time to explain the underlying concepts of the technology.
With this in mind, [[iPhone iOS 4 App Development Essentials]] will remain true to tradition and provide a very simple example to get us started. In doing so, we will also be honoring another time honored tradition by providing this example in the form of a simple “Hello World” program. The “Hello World” example was first used in a book called the C Programming Language written the creators of C, Brian Kernighan and Dennis Richie. Given that the origins of Objective-C can be traced back to the C programming language it is only fitting that we use this example for the iPhone.
== Starting Xcode ==
