C# Exception Handling
To handle runtime errors, the process of Exception Handling is used in C#. Even after the runtime errors, the normal flow of the application can be maintained using the exception handling. Exceptions in C# are events or objects thrown at runtime and are derived from the System.Exception class. It can be handled, else it terminates the program after printing an exception message.
Advantage:
The normal flow of the application is maintained and thus the rest of the code is executed event after the exception.
C# Exception Classes:
In C#, the exception classes are derived from the System.Exception class. The C# common exception classes are listed below.
| Exception | Uses |
| System.DivideByZeroException | Used to handle the error generated by dividing a number with zero. |
| System.NullReferenceException | Used to handle the error generated by referencing the null object. |
| System.InvalidCastException | Used to handle the error generated by invalid typecasting. |
| System.IO.IOException | Used to handle the Input Output errors. |
| System.FieldAccessException | Used to handle the error generated by invalid private or protected field access. |
C# Exception Handling Keywords:
To perform exception handling, the following keywords are used in C#:
- try
- catch
- finally
- throw
