BCIS 3680 EXAM 3 STUDY GUIDE
1. Exception Handling - Answers --intercepting and responding to exceptions
1.1 Be able to describe the following: error, unchecked exception, checked exception,
logical error. - Answers -EXCEPTION: generated as the result of an error or an
unexpected event.-Throwable class(either error or exception)
CHECKED EXCEPTION:
-compiler will examine your code before compiling. If it finds an issue, your program
won't be able to compile until you address it(Java)
"passing the buck" = throwing the exception(dodge it)
CHECKED EXCEPTION:exceptions occur due to reasons that are not controllable by
the programmer - Answers -UNCHECKED EXCEPTION:
-result of a serious condition that are not under the programmer's control
-critical errors
EX. internal error, run out of memory
EX. AWTError, ThreadDeath, VM Error
UNCHECKED EXCEPTIONS:-unchecked by compilerRuntimeExceptiontry-catch-finally
(result of sloppy programming/ avoided with properly written code)
LOGICAL ERRORS: - Answers -programmer errors that won't generate any exceptions
in code but will cause logical errors
EX. error in variables, method names, data types
1.2 Know the superclass of all exceptions and the major methods that provide
information about an exception. - Answers -getMessage()
-returns a string indicating the cause of the exception.
toString()
-returns a string containing the exception class name and what would be returned by
getMessage().
printStackTrace()
-prints the line number of the code that caused the exception, plus the sequence of
method calls leading up to the exception.
STACKTRACE=list of all the methods executing.
1.3 Know the rules governing the handling of exceptions. - Answers -EXCEPTION
HANDLER:-section of code that gracefully responds to exceptions.
