第十一次上机作业

package Wxte;

public class Car {
	 private String brand;
     private String color;
     private double speed = 0;
     public Car() {
     }
     public Car(String brand, String color) {
      this.brand = brand;
      this.color = color;
      speed = 0;
     }
     public String getBrand() {
      return brand;
     }
     public void setBrand(String brand) {
      this.brand = brand;
     }
     public String getColor() {
      return color;
     }
     public void setColor(String color) {
      this.color = color;
     }
     public double getSpeed() {
      return speed;
     }
     public void setSpeed(double speed) {
      this.speed = speed;
     }
     public void run() {
      System.out.println(getColor() + "色的  " + getBrand() + " 的速度是  " + getSpeed());
    }
}

　　

package Wxte;

public class desk {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Car car = new Car("desk","blue");
		car.run();
   }
	}

　　

package Wxte;

public class besk extends Car  {
	 private int loader;
     public besk() {
     }
     public besk(String brand, String color, int loader) {
    	 super(brand, color);
      this.loader = loader;
     }
     public void run() {
      System.out.println(getColor() + "色的" + getBrand()+"载人人数是：" + loader  + "的速度是：" + getSpeed());
     }
    }

　　

package Wxte;

public class Bases {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		 Car besk = new besk("desks", "blow",4 );
		 besk.run();
	}

}

　　

2.

package Wxte;

public abstract class Car {
	 protected double area;
	    protected double per;
	    protected String color;

	    public  Car () {
	    }

	    public  Car (String color) {
	        this.color = color;
	    }

	    public abstract void getArea();

	    public abstract void getPer();

	    public abstract void showAll();

	}

　　

package Wxte;

public class besk extends Car  {
	 double width;
	    double height;

	    public  besk () {
	    }

	    public  besk (double width, double height, String color) {
	        super();
	        this.width = width;
	        this.height = height;
	        this.color = color;
	    }

	    public void getArea() {
	        area = width * height;
	    }

	    public void getPer() {
	        per = (width + height) * 2;
	    }

	    public void showAll() {
	        System.out.println("矩形面积为：" + area + "，周长为：" + per + ",颜色：" + color);
	    }
	}

　　

package Wxte;

public class Dsksk extends Car {
	double radius;

    public  Dsksk() {
    }

    public  Dsksk(double radius, String color) {
        this.color = color;
        this.radius = radius;
    }

    public void getArea() {
        area = radius * radius * 3.14;
    }

    public void getPer() {
        per = 2 * radius * 3.14;
    }

    public void showAll() {
        System.out.println("圆的面积为：" + area + "，周长为：" + per + ",颜色：" + color);
    }
}

　　

package Wxte;

public class desk {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Car a = new Dsksk(3, "蓝色");
        Car b = new besk(5, 7, "白色");
        a.getArea();
        a.getPer();
        a.showAll();
        b.getArea();
        b.getPer();
        b.showAll();
    }   }