exception handling in vb.net

1. SIRI FORT COLLEGE OFSIRI FORT COLLEGE OF
COMPUTER TECHONOLOGYCOMPUTER TECHONOLOGY
AND MANAGEMENTAND MANAGEMENT
SUBMITTED TO:- SUBMITTED
BY:-
-MISS SHIVANGI CHAWLA -AMAN SAXENA
(ASSTT. PROFESSOR) MADHAV
SHARMA
MR. ATUL KUMAR PANKAJ
(ASST. PROFESSOR)

2. EXCEPTION HANDLING

3. CONTENTS OF THE
presentation:-
1)DEFINATION.
2)TYPES OF EXCEPTIONS.
2)TYPES OF ERRORS.
3)KEYWORDS.
4)TYPES OF EXCEPTION.
5)THROWING OBJECTS.

4. INTRODUCTION:-
THIS IS ONE OF THE MAIN FEATURES OF .NET
FRAMEWORK FOR WINDOWS AND WEB BASED
APPLICATION.AN EXCEPTION IS AN ERROR
CONDITION OR ANY ABNORMAL CONDITION
IN THE PROGRAM AND DISRUPTS THE NORMAL
FLOW OF INSTRUCTIONS.

5. DEFINATION:-
Exception handling is a mechanism in
which a programming construct is used to
consistently trap, intercept and handle
the error occurred during application
execution.

6. TYPES OF EXCEPTION:-
1)Arithmetic exception.
2)Overflow exception.
3)Null reference exception.

7. ARITHMETIC-EXCEPTION
ARITHEMATIC EXCEPTION REFERS
TO
THE EXCEPTION THAT RAISES WHEN
THE ARITHEMATIC OPERATION
RESULTS AN INFINITE OUTPUT.

8. NULL REFERENCE EXCEPTION
IT RAISES WHEN NULL OBJECT IS
REFERENCED.
It indicates that you are trying to
access member fields, or function
types, on an object reference that
points to null. It indicates a flaw in the
code.

9. AMAN SAXENA
00716702014
ARGUMENT EXCEPTION
IT REFERS TO THE EXCEPTION WHICH
RAISES WHEN THE ARGUMENTS TO THE
METHOD ARE NOT VALID.

10. AMAN SAXENA
00716702014
KEYWORDS RELATED TO
EXCEPTION HANDLING:-
1)TRY:-
EXCEPTION HANDLING STARTS WI
TH THIS BLOCK.
2)CATCH:-
IT CHECKS WHEATHER THE
EXCEPTION CAN BE HANDLED OR
NOT.
3)THROW-WE CAN THROW THE
EXCEPTION USING THIS.

11. AMAN SAXENA
00716702014
SYNTAX OF STRUCTURED
EXCEPTION HANDLING:-
TRY
<STATEMENTS>
[CATCH[EXCEPTION AS TYPE]]
[CATCH[EXCEPTION AS TYPE]]
[CATCH[EXCEPTION AS TYPE]]
[FINALLY
[FINALLY STATEMENTS]
END TRY.

12. AMAN SAXENA
00716702014
PREPARED BY:-
AMAN SAXENA
MADHAV SHARMA