What do you think about checked exceptions in Java?

Checked Exceptions require mandatory handling or declaration in the method signature. They work well for situations where the calling code is expected to recover from an error, such as working with files or networks.

Their advantages:

• They force developers to explicitly handle potential errors, which can improve code reliability.
• They make the API more informative, as the method signature clearly indicates possible issues.

Disadvantages:

• They can lead to excessive exception handling (e.g., catch (Exception e) { e.printStackTrace(); }), only for the compiler.
• They complicate method signatures, especially when using multiple types of checked exceptions.
• They create problems for lambda expressions and streams (Java Stream API), requiring workarounds for their handling.

Overall, their use should be considered carefully and applied to recoverable situations, not for programming errors or unrecoverable problems. In some cases, using unchecked exceptions or returning special values may be more appropriate.