Java – exception handling mode

See a common pattern where the error code associated with the exception is stored as a static final int When an exception is created to be thrown, it is constructed as one of these codes and an error message

The alternative seems to be – declare a class for each exception error condition (although the associated exception is eliminated from a common base class)

Is there a middle position? What is the recommended method?

Solution

This is a good question I believe it is definitely a middle ground

Error codes are essential for displaying errors in quality checks and for customers to return customer support to developers

I personally do not recommend error codes for handling errors programmatically. I will suggest a new class for each category of errors, but definitely not every error Java has done a decent job. Let's start with exceptions, such as IOException, illegalargumentexception, unsupported operation exception, etc I often throw and catch these in my code

If you have an exception of a new class and your code should respond programmatically, you should definitely create a new class for this and extend the corresponding parent class For example, userregistrationexception or productexception