"SCJP 1.6版考題 045" 修訂間的差異

於 2013年3月30日 (六) 07:40 的最新修訂

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? (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{}