Which is the valid declarations within an interface definition?

1.	Which is the valid declarations within an interface definition?
A.	public double methoda();
B.	public final double methoda();
C.	static void methoda(double d1);
D.	protected void methoda(double d1);
Answer» B. public final double methoda();

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Which is the valid declarations within an interface definition?
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Which is the valid declarations within an interface definition?

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