//父類?Vehicle·??
package?com.imooc;??
public?class?Vehicle?{??
????public?void?show(){??
????????System.out.println("可以載多少人呢？");??
????}??
}

//子類?Taxi??
package?com.imooc;??
public?class?Taxi?extends?Vehicle?{??
????public?void?show(){??
????????String?numb="1~4人";??
????????String?way="馬路";??
????????System.out.println("Taxi:");??
????????System.out.println("一般可載："?+?numb);??
????????System.out.println("工作媒介："?+?way);??
????}??
}

//子類?Bus??
package?com.imooc;??
public?class?Bus?extends?Vehicle?{??
????public?void?show(){??
????????String?numb="1~50人";??
????????String?way="馬路";??
????????System.out.println("Bus:");??
????????System.out.println("一般可載："?+?numb);??
????????System.out.println("工作媒介："?+?way);??
????}??
}

//測試的Initial??
package?com.imooc;??
public?class?Initial?{????
????public?static?void?main(String[]?args)?{??
????????//?TODO?Auto-generated?method?stub??
????????Vehicle?obj1?=?new?Taxi();??
????????Vehicle?obj2?=?new?Bus();??
????????obj1.show();??
????????obj2.show();??
????}??
??
}

子類Initial輸出的結果為：

Taxi:??
一般可載：1~4人??
工作媒介：馬路??
Bus:??
一般可載：1~50人??
工作媒介：馬路