Exceptions in

About Exceptions

It is important to note that exceptions should be used in cases where something exceptional happens, an error that needs special handling. It should not be used for control-flow of a program, as that is considered bad design, which often leads to bad performance and maintainability.

Some of the more common exceptions include IndexOutOfRangeException, ArgumentOutOfRangeException, NullReferenceException, StackOverflowException, ArgumentException, InvalidOperationException and DivideByZeroException.

Some of the cases when exceptions should be thrown include:

• if the method cannot complete its defined functionality
• an inappropriate call to an object is made, based on the object state
• when an argument to a method causes an exception