Inherit 3-a B E

. Write a Java application that consists of 3 classes: class a ,classB , and main class E . Which

Class B is a subclass of class A , new member variables and member methods are added to subclass B , and the parent class is hidden

A member variable and overrides a member method of parent Class A. In main class E , in the main method, create class B

object and assign it to the object A of the parent class A , use the On Transformation object a to test some of the features of the object being transformed.

1  PackageMianxiangduixiang;2 3  Public classJichenga {4     PrivateString food;5      PublicString Getfood () {6         returnFood ;7     }8      Public voidSetfood (String food) {9Food =Food ;Ten     } One       Public voidSpeakfood () A      { -System.out.println ("Go out to dinners"); -      } the       Public voidAmericanfood () -      { -System.out.println ("Steak, pizza, hamburger"); -      } +      Public Static voidMain (string[] args) { -         //TODO Auto-generated method stubs +      A     } at  -}

1  PackageMianxiangduixiang;2 3  Public classJichengbextendsJichenga {4 5      Public voidSpeakfood ()6     {7SYSTEM.OUT.PRINTLN ("Pass the Board");8     }9      Public voidChinafood ()Ten     { OneSystem.out.println ("Shandong cuisine, Sichuan, Cantonese, Fujian, Su, Zhe, Hunan, Hui cuisine")); A     } -      Public Static voidMain (string[] args) { -         //TODO Auto-generated method stubs theJICHENGB a=Newjichengb (); -A.setfood ("Eight major cuisines"); - A.speakfood (); - A.americanfood (); + A.chinafood (); -     } +  A}

Inherit 3-a B E