Exception Hierarchy

Core JavaTopic 21 of 322 questions

Q1What are custom exceptions and how do you create them?

Create a custom exception by extending Exception (checked) or RuntimeException (unchecked). Include a message, cause, and relevant business data.

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Q2What is the Throwable class and the exception hierarchy?

Throwable is the root of all exceptions. It branches into Error (JVM problems, do not catch) and Exception (application problems). Exception branches into checked (compile-time enforced) and unchecked (RuntimeException).

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