Explanatory Question
IOException is subclass of which exception class?
Read the answer carefully and go through the related questions on the right side to improve your understanding of this topic.
IOException is a subclass of Exception (specifically, it’s a checked exception).
First read the answer fully, then try to explain it in your own words. After that, open a few related questions and compare the concepts. This method helps you remember the topic for a longer time and improves exam preparation.