This divergence is known as an exception. For example, ... The three fprintf() function calls are the exception-handling code whose Java equivalent would be executed in one or more catch blocks.

The copy of 10,000 items is costing a total of .2 milliseconds, each time. It's not free, but it's not that expensive either. All things considered, it's a small price to pay for writing ...

When the SWF compiled from the code immediately above is executed against the regular Flash Player, there is no visual evidence of the uncaught exception in the newly added ActionScript method ...