Java: Exceptions Basics

Exceptions are for handling errors, not regular control flow.

Using exceptions for regular control flow can make code less readable and harder to maintain. Exceptions are meant to signal unexpected issues or errors, not to manage routine logic. It can also affect performance negatively because throwing exceptions is computationally expensive. In a checkout flow, using an exception to manage a scenario like an out-of-stock item is inappropriate; instead, a simple condition check should be used.