MODULE 12: EXCEPTIONS- COMPUTER SCIENCE.
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What is an exception? - Answer: An exception is an abnormal condition that arises in a
code sequence at run time. An Exception is simply a type of Java object meant to
"wrap" an event that causes an interruption to the typical flow of a program.
What is an example of a checked exception? - Answer: I/O Exceptions (filenotfound
Exception)
Classnotfoundexception
What is a checked exception? - Answer: It is an exception that is typically a user error
or a problem that cannot be foreseen by the programmer. For example, if a file is to be
opened, but the file cannot be found, an exception occurs. These exceptions cannot
simply be ignored at the time of compilation.
Ioexceptions
What is an unchecked exception? - Answer: The compiler does not require your code
to handle the exception, and if it occurs, it is detected at runtime and may terminate
your program.
How do you handle an exception? - Answer: Using a try catch block or a try finally
block.
What is finally keyword? - Answer: A finally block consists of code that is used to
execute important code such as closing a connection, etc. This block executes when
the try block exits. It also makes sure that finally block executes even in case some
unexpected exception is encountered. Meaning it will run if an exception occurs or not.
What class does Exceptions extend from? - Answer: Throwable
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APPHIA - Crafted with Care and Precision for Academic Excellence.
Trusted by students across multiple disciplines!
What is an exception? - Answer: An exception is an abnormal condition that arises in a
code sequence at run time. An Exception is simply a type of Java object meant to
"wrap" an event that causes an interruption to the typical flow of a program.
What is an example of a checked exception? - Answer: I/O Exceptions (filenotfound
Exception)
Classnotfoundexception
What is a checked exception? - Answer: It is an exception that is typically a user error
or a problem that cannot be foreseen by the programmer. For example, if a file is to be
opened, but the file cannot be found, an exception occurs. These exceptions cannot
simply be ignored at the time of compilation.
Ioexceptions
What is an unchecked exception? - Answer: The compiler does not require your code
to handle the exception, and if it occurs, it is detected at runtime and may terminate
your program.
How do you handle an exception? - Answer: Using a try catch block or a try finally
block.
What is finally keyword? - Answer: A finally block consists of code that is used to
execute important code such as closing a connection, etc. This block executes when
the try block exits. It also makes sure that finally block executes even in case some
unexpected exception is encountered. Meaning it will run if an exception occurs or not.
What class does Exceptions extend from? - Answer: Throwable
1
APPHIA - Crafted with Care and Precision for Academic Excellence.
