Page 393 - CITS - Computer Software Application -TT

COMPUTER SOFTWARE APPLICATION - CITS

catch (UserDefinedException ude)
{
System.out.println(“Caught the exception”);
// Print the message from MyException object

System.out.println(ude.getMessage());
}
}
}

Output

Difference between final, finally and finalize
The final, finally, and finalize are keywords in Java that are used in exception handling. Each of these keywords
has a different functionality. The basic difference between final, finally and finalize is that the final is an access
modifier, finally is the block in Exception Handling and finalize is the method of object class.

Along with this, there are many differences between final, finally and finalize. A list of differences between final,
finally and finalize are given below:

S.No. Key Final Finally Finalize
final is the keyword and finally is the block finalize is the method
access modifier which is in Java Exception in Java which is used
used to apply restrictions Handling to execute the to perform clean up
1 Definition
on a class, method or important code whether processing just before
variable. the exception occurs or object is garbage
not. collected.
Final keyword is used Finally block is always finalize() method is used
with the classes, related to the try and with the objects.
2 Applicable to
methods and variables. catch block in exception
handling.
(1) Once declared, (1) finally block runs the cla
final variable becomes important code even if
constant and cannot be exception occurs or not.
modified. (2) finally block cleans
3 Functionality (2) final method cannot up all the resources
be overridden by sub used in try block
class.
(3) final class cannot be
inherited.
Final method is executed Finally block is finalize method is
only when we call it. executed as soon as executed just before the
the try-catch block is object is destroyed.
4 Execution executed.
It’s execution is not
dependent on the
exception.

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CITS : IT&ITES - Computer Software Application - Lesson 101 - 108