多项选择题
Given that: Gadget has-a Sprocket and Gadget has-a Spring and Gadget is-a Widget and Widget has-a Sprocket Which two code fragments represent these relationships? （）
A.
B.
C.
D.
E.
F.
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相关考题
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单项选择题
Given: What is the result?（）
A.Compilation fails because of an error in line 7.
B.Compilation fails because of an error in line 9.
C.If you define D e = new E(), then e.bMethod() invokes the version of bMethod() defined in Line 5.
D.If you define D e = (D)(new E()), then e.bMethod() invokes the version of bMethod() defined in Line 5.
E.If you define D e = (D)(new E()), then e.bMethod() invokes the version of bMethod() defined in Line 9. -
单项选择题
Given: What is the result?（）
A.r，t，t，
B.r，e，o，
C.Compilation fails.
D.An exception is thrown at runtime. -
单项选择题
Given: When the doSomething method is called, after which line does the Object created in line 5 become available for garbage collection?（）
A.Line 5
B.Line 6
C.Line 7
D.Line 8
E.Line 9
F.Line 10
