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| • Two techniques to improve program reliability are exception handling and
assertion. • Exception handling is another type of control flow. • An exception represents an error condition, and when it occurs, we say an exception is thrown. • Athrown exception must be handled by either catching it or propagating it to other methods. • If the program does include code to handle the thrown exceptions, then the system will handle them. • Asingle method can be both a catcher and a propagator of an exception. • The standard classes described or used in this chapter are: Throwable RuntimeException Error IllegalArgumentException Exception NumberFormatException IOException • The assertion feature is new to Java 2 SDK 1.4. You must use this version of the compiler to use assertions in the program. • The assertion feature is used to detect internal logic errors. |