Students will learn about custom exceptions in computer programming in this session, which are exceptions made by the programmer to address certain requirements in the application. The next subjects include:
Custom exceptions are described along with how they differ from the default exceptions in a programming language.
Why use custom exceptions? : A review of the benefits of using custom exceptions in software development, including the provision of more informative error messages, enhanced exception handling code organisation, and facilitation of handling of particular issue kinds.
How to construct a new exception class and expand the built-in exception classes in the programming language is covered in detail in the section on creating custom exceptions.
Creating an instance of a custom exception class and using the throw statement to raise a custom exception in a programme are both covered in the section on throwing custom exceptions.
Handling custom exceptions: A description of how to handle custom exceptions, including how to catch one using a catch block, how to learn more about it, and how to utilise it to give the user more illuminating error messages
Best practises for utilising custom exceptions in a software include making unique exception classes for particular issue kinds, including descriptive error messages, and avoiding using custom exceptions for general error handling.
Students will have a solid understanding of custom exceptions and how to apply them in exception handling by the end of this class. They will be equipped to design custom exceptions, throw and manage custom exceptions, and use best practises for doing so in a programme.