What principles or criteria do you consider when choosing to use unchecked exceptions in your code?

When choosing to use unchecked (unchecked) exceptions in Java, I consider the following principles:

• Unexpected errors: If an error indicates a programming mistake (e.g., NullPointerException, IllegalArgumentException), it is better to use unchecked exceptions to avoid cluttering the code with handling.
• Errors that cannot or should not be recovered from: If a method call does not imply a reasonable way to recover, it is better to use unchecked exceptions.
• API cleanliness: If checked exceptions complicate the interface and do not add value for the calling code, it is preferable to choose unchecked.
• Error control: Checked exceptions are suitable when the calling code must handle the error, whereas unchecked are for optional handling.

Thus, I apply unchecked exceptions for errors resulting from incorrect API usage or unforeseen failures, and checked exceptions for expected, verifiable situations.