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

Section 11.7 Stack Unwinding and Obtaining Information from an Exception Object

• When an exception is thrown but not caught in a particular scope, the method-call stack is un wound, and an attempt is made to catch the exception in the next outer try statement.

• Class Throwable offers a printStackTrace method that prints the method-call stack. Often, this is helpful in testing and debugging.

• Class Throwable also provides a getStackTrace method that obtains the same stack-trace information that’s printed by printStackTrace (p. 461).

• Class Throwable’s getMessage method (p. 461) returns the descriptive string stored in an exception.

• Method getStackTrace (p. 461) obtains the stack-trace information as an array of StackTrace Element objects. ...