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Which of the following checks if the object is NULL?

19. Which of the following checks if the object is NULL?

1. void assertNotNull(Object obj)
2. void assertNull(Object obj)
3. void assertNullNot(Object obj)
4. void assertNullValue(Object obj)

Answer: B) void assertNull(Object obj)

Explanation:

void assertNull(Object obj) checks if the object is NULL.