Oracle

1Z0-815 · Question #13

Given: Why does D cause a compilation error?

The correct answer is D. D does not define any method. See the full explanation below for the reasoning.

Question

Given:

Why does D cause a compilation error?

Exhibit

1Z0-815 question #13 exhibit

Options

AD inherits a() only from C.
BD inherits a() from B and C but the return types are incompatible.
CD extends more than one interface.
DD does not define any method.

How the community answered

(25 responses)

A
16% (4)
B
8% (2)
C
4% (1)
D
72% (18)

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