Which two code fragments represent these relationships?()
- A、class Widget{Sprocket s;};class Gadget extends Widget{Spring s;}
- B、class Widget{};class Gadget extends Widget{Spring s1; Sprocket s2;}
- C、class Widget{Sprocket s1; Spring s2;};class Gadget extends Widget{}
- D、class Gadget{Spring s;};class Widget extends Gadget{Sprocket s;}
- E、class Gadget{};class Widget extends Gadget{Sprocket s1; Spring s2;}
- F、class Gadget{Spring s1; Sprocket s2;};class Widget extends Gadget{}
正确答案:A,C
答案解析:有
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