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What is normal? What is exceptional?
It is useful to draw the border between normal program aspects and exceptional program aspects
- Normal program aspects
- Situations anticipated and dealt with in the conventional program flow
- Programmed with use of selective and iterative control structures
- Exceptional program aspects
- Situations anticipated, but not dealt with "in normal ways" by the programmer
- Leads to an exception
- Recoverable via exception handling. Or non-recoverable
- Situations not anticipated by the programmer
- Leads to an exception
- Recoverable via exception handling. Or non-recoverable
- Problems beyond the control of the program