Exception Handling Approaches

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Exception Handling - slide 10 : 30

Exception Handling Approaches

Printing error messages
- Console.Out.WriteLine(...) or Console.Error.WriteLine(...)
- Error messages on standard output are - in general - a bad idea

Use of the Console class for redirection of the error stream

Returning error codes
- Like in many C programs
- In conflict with a functional programming style, where we need to return data
Set global error status variables
- Almost never attractive
Raise and handle exceptions
- A special language mechanism to raise an error
- Rules for propagation of errors
- Special language mechanisms for handling of errors