Exception Handling
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Exception Handling

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Exception handling is a programming language construct or computer hardware mechanism designed to handle the occurrence of exceptions, special conditions that change the normal flow of program execution. Unlike signals and event handlers that are part of the normal program flow, exceptions are typically used to signal that something went wrong (e.g. a division by zero occurred or a required file was not found). Exceptions are raised or thrown (initiated) by either the hardware or the program itself by using a special command. Programming languages differ considerably in their support for excep...