Java™ How To Program (Early Objects), Tenth Edition

Obtaining Data from an Exception Object

All exceptions derive from class Throwable, which has a printStackTrace method that outputs to the standard error stream the stack trace (discussed in Section 11.2). Often this is helpful in testing and debugging. Class Throwable also provides a getStackTrace method that retrieves the stack-trace information that might be printed by printStackTrace. Class Throwable’s getMessage method returns the descriptive string stored in an exception.

Error-Prevention Tip 11.7

An exception that’s not caught in an application causes Java’s default exception handler to run. This displays the name of the exception, a ...