試題詳解

複選題
第45題 Given that: Gadget has-a Sprocket and Gadget has-a Spring and Gadget is-a Widget and SCJP 6.0 認證教戰手冊 黃彬華著 碁峰出版 24 Widget has-a Sprocket Which two code fragments represent these relationships? (Choose two.)
(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{}