多项选择题
Which three are valid on line 12?()
A.final
B.static
C.native
D.public
E.private
F.abstract
G.protected
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Giventhefollowingsixmethodnames:(1)addListener(2)addMouseListener(3)setMouseListener(4)deleteMouseListener(5)removeMouseListener(6)registerMouseListenerHowmanyofthesemethodnamesfollowJavaBeanListenernamingrules?()
A.1
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C.3
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E.5 -
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Which two methods, inserted independently at line 17, correctly complete the Sales class?()
A.double getSalesAmount() { return 1230.45; }
B.public double getSalesAmount() { return 1230.45; }
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Which two are true?()
A.The output is mm.
B.The output is mc.
C.Component is-a Meter.
D.Component has-a Meter.
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F.DeluxeThingy has-a Component.
