It is good programming practice to plan for possible exceptions and provide code to handle the exception. Which exception must be handled to prevent a divide by zero logic error?

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BlackTom AI · Accepted Answer

In this question, we’re focusing on which exception must be handled to prevent a divide by zero logic error in programming.
Option 1: ArithmeticError. This is a broad superclass for many arithmetic-related errors. While catching ArithmeticError could prevent some arithmetic issues, it is not specific to division by zero. Relying on such a general catch can inadvertently mask other arithmetic problems that you might want to handle differently, making it a less precise choice.
Option 2: ValueError. This exception is typically raised when a function receives an argument of the right type but an inappropriate value (for example, int('abc') or passing a negative size to a function). It is not the standard signal for division-by-zero problems, so handling ValueError would not reliably catch a divide-by-zero scenario.
Option 3: ZeroDivisionError. This is the explicit exception raised when a division (or modulo) operation attempts to divide by zero. It directly represents the fault condition we want to guard against and is the most precise and appropriate choice for handling divide-by-zero logic errors. Catching this exception allows you to respond specifically to div-by-zero cases (e.g., by providing a fallback value or error message) without interfering with other arithmetic errors.
Option 4: TypeError. This exception occurs when an operation or function is applied to an object of an inappropriate type (for example adding a string to an integer). It is not related to the divisor being zero, so it would not prevent divide-by-zero errors.

To prevent a divide-by-zero logic error, the most appropriate approach is to anticipate division by zero and manage the ZeroDivisionError (either by a targeted exception handler or by pre-checking the divisor before performing the division). The other exceptions either do not correspond to the division-by-zero condition or are too broad to reliably address this specific error.

Fal25_CS003C_74229 Ch. 7 Pre-Quiz (Remotely Proctored)

It is good programming practice to plan for possible exceptions and provide code to handle the exception. Which exception must be handled to prevent a divide by zero logic error?

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