How Do You Create Exception Classes In Java?
The Java programming language takes an exceptions-based approach to handling error detection and handling in code. Rather than create a complex system of nested if-else statements to try to catch every possible error, all error catching can be organized into a series of “try-catch” statements at the end of a function. This allows error control to get out of the way of the program’s actual flow and leads to more readable, easier-to-maintain code. Choose a parent class. Any subclass of java.lang.Exception can be used as the parent for a new exception class. However, for this example, you’ll use the basic Exception class as a parent. Exception gives us all the basic necessities of an exception: it is throwable, it can print a stack trace, and allows a message to be retrieved about the nature of the exception. Create a subclass that extends that parent class. This is the same as creating any other subclass in Java. For good code readability, it is standard to always end the class name with
