多项选择题
Which two are true?()
A.The output is mm.
B.The output is mc.
C.Component is-a Meter.
D.Component has-a Meter.
E.DeluxeThingy is-a Component.
F.DeluxeThingy has-a Component.
相关考题
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多项选择题
Which three are valid?()
A.p0=p1;
B.p1=p2,
C.p2=p4;
D.p2=(ClassC)p1;
E.p1=(ClassB)p3;
F.p2=(ClassC)p4; -
单项选择题
What is the result?()
A.b,3
B.b,8
C.b,13
D.f,3
E.f,8
F.f,13
G.Compilation fails.
H.An exception is thrown at runtime. -
单项选择题
Given two files, GrizzlyBear.java and Salmon.java: If both classes are in the correct directories for their packages, and the Mammal class correctly defines the findSalmon() method, which change allows this code to compile?()
A.add import animals. mammals.*; at line 2 in Salmon.java
B.add import animals.fish.*; at line 2 in GrizzlyBearjava
C.add import animals.fish.Salmon.*; at line 2 in GrizzlyBear.java
D.add import animals. mammals.GrizzlyBear*; at line 2 in Salmon.java
