Summary

We’ve just explored the importance of exception handling. We now know how it allows us to separate the code logic from the error handling logic. We delved into the two main types of exceptions: checked and unchecked. Checked exceptions are exceptions that require explicit handling, whereas unchecked exceptions are usually caused by programming errors and do not need to be explicitly caught or declared.

We discussed the catch or declare principle, which requires checked exceptions to be caught in a try-catch block or declared in a method’s signature. The try-catch block allows us to handle exceptions by executing alternative code when an exception occurs. We also learned about using multiple catch blocks to handle different types.

Next, we saw the finally block, which is executed regardless of whether an exception occurs. This block is useful for cleaning up resources and ensuring certain actions are always performed. This finally block is less common since...