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：