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An exception is an event that occurs during program execution and disrupts the normal flow of the program’s instructions. Exceptions are used in programming to handle errors and other unusual events. They are typically generated when a runtime error occurs, such as a division by zero or an out-of-bounds array access. An exception handler can catch and handle the exception in the code, allowing the program to continue running instead of crashing or producing an incorrect result. In Java, a user defined exception is a powerful tool for dealing with specific requirements and scenarios. They enable programmers to provide more descriptive error messages and manage exceptions more effectively and efficiently.<\/p>\n
User-defined exceptions are custom exceptions that a programmer can add to their code to deal with specific error conditions or situations. These exceptions are derived from the base exception class and allow the programmer to customize the exception-handling process to meet their specific requirements. User-defined exceptions are used to indicate errors that are specific to the application being developed, and they are frequently used in code to provide a higher level of abstraction and readability.<\/p>\n
For example, a programmer may create a custom exception for a bank account class that checks if a withdrawal would result in a negative balance. If a withdrawal would cause a negative balance, the custom exception is thrown and can be caught and handled by the code. This allows the programmer to provide more meaningful error messages and handling of specific error conditions in the code, rather than relying on generic exceptions.<\/p>\n
These are the following uses of user defined exception in java or in any language<\/p>\n
To implement a user-defined exception in Java, follow these steps:<\/p>\n
Here is an example implementation of a user-defined exception class:<\/p>\n\t\t\t\t\t\t