Consider a scenario where you're working with a team developing a library for handling financial transactions. How would you design custom exceptions to provide meaningful information to the client applications when an error occurs, such as insufficient funds or invalid account details?
- Create custom exception classes like InsufficientFundsException and InvalidAccountDetailsException, each with appropriate attributes and constructors. Implement specific error messages and codes within these exceptions.
- Use the predefined RuntimeException class for all exceptions related to financial transactions. Provide detailed error messages as part of the exception's message field.
- Throw generic exceptions like IOException with custom error messages to indicate specific issues, such as insufficient funds or invalid account details.
- Implement a single custom exception class, FinancialTransactionException, and use enumerated types or error codes to represent different error scenarios. Include a message field for detailed information.
In the context of financial transactions, it's essential to provide meaningful error information to client applications. Creating custom exception classes (Option 1) allows you to encapsulate specific error details and provide clear, structured information to clients. Using generic exceptions (Options 2 and 3) can lead to ambiguity, making it challenging for client applications to handle errors effectively. Option 4 suggests using a single exception class with error codes, which can be less expressive than creating dedicated exceptions for different scenarios.
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