C Sharp Exception Handling Assignment Help

EXCEPTION HANDLING

Its a run time error which falls at some stage in the implementation of a program.
For example divide by zero raises an exception
Exceptions transfers control from one part of a program to another part of a program.
This mechanism has four keywords associated to it .They are try, catch, finally, and throw.
try block has exception raising doubtful statements
In this block exception is activated .It can have one or more catch blocks.
throw keyword throws an exception
catch block catches an exception
more than one statement can be used for a single try statement
finally block finally executed irrespective of an exception is thrown or not thrown.

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Syntax

try
{
// doubtful statements
} catch ( Exceptionname excp1 )
{
// statements
} catch ( Exceptionname excp2 )
{
// statements
} catch ( Exceptionname excpn )
{
// statements
} finally {
// statements always executed
}

Exception Classes in C#

Exception
ApplicationException
SystemException
IO.IOException
IndexOutOfRangeException
ArrayTypeMismatchException
NullReferenceException
DivideByZeroException
InvalidCastException
OutOfMemoryException
System.StackOverflowException

Example