Basic HTML version of Foils prepared 19 July 97

Foil 55 Classes of Exceptions

From Java Tutorial - Summer 1997 Part II: Java Language and Object-Oriented Concepts CEWES Tutorial -- July 22-25 1997. by Nancy J. McCracken,Geoffrey C. Fox
There are two subclasses of Throwable
  • Error such as OutOfMemoryError which do NOT have to be caught as they are serious but unpredictable and could typically occur anywhere!
  • Exception which we have discussed
Exception has a subclass RuntimeException that need NOT be caught
Typical RuntimeException subclasses are
ArithmeticException, ClassCastException, IndexOutofBoundException

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