继承—Car

编写一个Car类，具有final类型的属性品牌，具有功能drive；

定义其子类Aodi和Benchi，具有属性：价格、型号；具有功能：变速；

定义主类E，在其main方法中分别创建Aodi和Benchi的对象并测试对象的特性。

 public class Car {
     private final String PinPai;
 
     public String getPinPai(){
         return PinPai;
     }
     public void drive(){
         System.out.println("我可以行驶。");
     }
 
     public Car(String pinpai){
         PinPai=pinpai;
     }
 
 }

 public class Aodi extends Car {
 
     public double price;
     public String xinghao;
 
     public void biansu() {
         System.out.println("速度改变");
     }
 
     public Aodi() {
         super("奥迪");
     }
 
     public void Aodi(double price, String xinghao) {
         this.price = price;
         this.xinghao = xinghao;
     }
 
     @Override
     public String toString() {
         return "Aodi [PinPai=" + getPinPai() + ", price=" + price + ", xinghao=" + xinghao + "]";
     }
 
 }

 public class BenChi extends Car{
 
     public double price;
     public String xinghao;
 
     public void biansu(){
         System.out.println("速度改变");
     }
 
     public BenChi(){
         super("奔驰");
     }
     public void BenChi(double price, String xinghao){
         this.price=price;
         this.xinghao=xinghao;
     }
 
     @Override
     public String toString() {
         return "BenChi [PinPai=" + getPinPai() + ", price=" + price + ", xinghao=" + xinghao + "]";
     }
 
 }

     public static void main(String[] args) {
         Aodi ad = new Aodi();
         ad.Aodi(400000, "A6");
         ad.biansu();
         System.out.println(ad.toString());
 
         BenChi bc = new BenChi();
         System.out.println(bc.getPinPai());
         bc.BenChi(350000, "Benze S—500");
         System.out.println(bc.toString());
 
     }

运行结果：