Which of the following are checked exceptions? (Choose all that apply)
A. Exception
B. IllegalArgumentException
C. IOException
D. NullPointerException
E. NumberFormatException
F. StackOverflowError
Answer:A and C
Explanation:
Option A is the exception base class, which is a checked exception. Options B, D, and E extend RuntimeException directly or indirectly and therefore are unchecked exceptions. Option F is a throwable and not an exception, and so should not be caught or declared.
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