编写一个Car类，具有String类型的属性品牌，具有功能drive；

24．编写一个Car类，具有String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。

package zuoye;

public class Cat {

	String pinpai;
	double sudu;
	double jiage;
	String xinghao;

	public String getPinpai() {
		return pinpai;
	}

	public void setPinpai(String pinpai) {
		this.pinpai = pinpai;
	}

	public double getSudu() {
		return sudu;
	}

	public void setSudu(double sudu) {
		this.sudu = sudu;
	}

	public double getJiage() {
		return jiage;
	}

	public void setJiage(double jiage) {
		this.jiage = jiage;
	}

	public String getXinghao() {
		return xinghao;
	}

	public void setXinghao(String xinghao) {
		this.xinghao = xinghao;
	}

	public String drive()
	{
		return "汽车已发动，请注意！";
	}

}

package zuoye;

public class Aodi extends Cat {

	public double biansu()
	{
		 double sudu=super.getSudu()+20;
	        return sudu;

	}

}

package zuoye;

public class Benchi extends Cat{

	public double biansu1()
	{
        double sudu=super.getSudu()+40;
        return sudu;
    }

}

package zuoye;

public class E {

	public static void main(String[] args) {
		Aodi ad=new Aodi();

		ad.setPinpai("奥迪    ");
		ad.setXinghao("奥迪x7  ");
		ad.setJiage(5000000.0);
		System.out.println("汽车品牌是："+ad.getPinpai()+"型号是："+ad.getXinghao()+"价格是："+ad.getJiage());
		System.out.println(ad.drive());
		System.out.println("启动后速度是："+ad.biansu()+"km/h");

		Benchi bc=new Benchi();

		bc.setPinpai("奔驰    ");
		bc.setXinghao("奔驰555  ");
		bc.setJiage(10000000.0);
		System.out.println("汽车品牌是："+bc.getPinpai()+"型号是："+bc.getXinghao()+"价格是："+bc.getJiage());
		System.out.println(bc.drive());
		System.out.println("启动后速度是："+bc.biansu1()+"km/h");
	}

}