Java Define Your Own Exception

All exceptions must be a child of throwable. It encloses the part of your code that might throw the exception. If you want to write a checked exception that is automatically enforced by the handle or declare rule you need to extend the exception class.

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By the help of custom exception you can have your own exception and message.

Java define your own exception. You can create your own exceptions in java. You can create your own exceptions in java. Let s see a simple example of java custom exception.

The class name of your exception should end with exception. If you want to write a checked exception that is automatically enforced by the handle or declare rule you need to extend the exception class. Each type of exception that can.

The following code snippet shows a simple example of a custom exception. Java try and catch the try statement allows you to define a block of code to be tested for errors while it is being executed. Java provides us facility to create our own exceptions which are basically derived classes of exception.

If you are creating your own exception that is known as custom exception or user defined exception. For example myexception in below code extends the exception class. If your code throws more than one exception.

This java tutorial guides you on how to create your own exceptions in java. You should only implement a custom exception if it provides a benefit compared to java s standard exceptions. If you want to write a runtime exception you need to extend the runtimeexception class.

You can also implement your own exception classes by extending the exception class or any of its subclasses. For example myexception in below code extends the exception class. As a programmer you probably have a good grasp on exceptions but here you will use inheritance to create exceptions of your own.