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Why would a Ruby programmer create a custom exception class instead of using built-in exceptions?

easy📝 Conceptual Q1 of 15
Ruby - Error Handling
Why would a Ruby programmer create a custom exception class instead of using built-in exceptions?
ATo automatically fix errors without user input
BTo handle specific error cases more clearly and separately
CTo avoid writing any rescue blocks
DTo make the program run faster
Step-by-Step Solution
Solution:
  1. Step 1: Understand the purpose of custom exceptions

    Custom exceptions help programmers identify and handle specific error cases clearly.
  2. Step 2: Compare with other options

    Built-in exceptions cover general errors, but custom ones clarify intent and improve error handling.
  3. Final Answer:

    To handle specific error cases more clearly and separately -> Option B
  4. Quick Check:

    Purpose of custom exceptions = Clear specific error handling [OK]
Quick Trick: Custom exceptions clarify specific error cases [OK]
Common Mistakes:
  • Thinking custom exceptions improve speed
  • Believing they remove the need for rescue blocks
  • Assuming they fix errors automatically

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