Now that the application is built, we can run it. The project window menu command Application > Start runs the most recently built executable for that window's project.
Figure 1.7 The Reversi application.
The Reversi application is now up and running.
When you choose Application > Start, the executable starts, runs, and terminates normally, but at the same time it has an invisible connection to the Functional Developer debugger. This means you can pause execution at any time to debug the application and even interact with it. (Use Application > Pause to do this.) In addition, if there is an unhandled error inside the application, the debugger will catch it automatically so that you can examine it. We will learn more about the debugger later, in "Problems at run time" on page 24 and also in Chapter 6.