Bifalgorithm post · Computer science one · Creating Custom Exceptions

How can a try-catch statement handle an exception from readNumber()?

How can a try-catch statement handle an exception from readNumber()? (Computer science one · Creating Custom Exceptions) — "Elsewhere in the code, we can surro…

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Gestion d'une exception de readNumber() avec try-catch
Un appel à readNumber() est entouré d'une instruction try-catch
Le bloc try appelle readNumber()
Le bloc catch traite l'exception Exception $e
Un message d'erreur est affiché sur la sortie standard
Le programme se termine avec le statut 1
$e->getMessage() affiche le message associé à la création de l'exception
Dans cet exemple, le message est « Invalid input! »
La décision de conception considère cette erreur comme fatale
Le bloc catch aurait pu traiter l'erreur autrement

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How can a try-catch statement handle an exception from readNumber()?

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Computer science one

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sam23

Ebook2w

"Elsewhere in the code, we can surround a call to readNumber() in a try-catch statement.\n\ntry {\n\nreadNumber();\n\n} catch(Exception $e) {\n\nprintf(\"Error: exception encountered: \" . $e->getMessage());\n\nexit(1);\n\n}\n\nIn this example, we’ve simply displayed an error message to the standard output and exited the program. We’ve made the design decision that this error should be fatal. We could have chosen to handle this error differently in the catch block. The $e->getMessage() prints the message that the exception was created with. In this case, \"Invalid input!\"."

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