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Have you used checked exceptions in API interface development?

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Answer from AI

Checked exceptions in Java are used for handling errors that can be anticipated and recovered from, such as input/output errors. When developing APIs, their use helps explicitly indicate to the calling code which errors need to be handled.

However, modern practices often recommend using unchecked exceptions to simplify code and avoid unnecessary verbosity. If the API expects that an error is critical and must be handled, checked exceptions are appropriate.

An example of using a checked exception in an API method:

public interface FileService {
    void saveFile(String path, byte[] data) throws IOException;
}

Here, the calling code is obliged to handle or propagate the IOException, making the method's contract more explicit.

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