第十四周作业

public class Vehicle {
    protected String brand;
    protected String clr;
    protected double speed;
    public Vehicle(String brand, String clr, double speed) {
        super();
        this.brand = brand;
        this.clr = clr;
        this.speed = 0;
    }
    
    
    public Vehicle() {
        super();
    }

    public String getClr() {
        return clr;
    }
    public void setClr(String clr) {
        this.clr = clr;
    }
    public double getSpeed() {
        return speed;
    }
    public void setSpeed(double speed) {
        this.speed = speed;
    }
    public String getBrand() {
        return brand;
    }
    public void run(){
        System.out.println(brand+"牌的"+clr+"色的汽车正以"+speed+"速度行驶");
    }

}

public class Car extends Vehicle {
    int lader;
    public int getlader(){
        return lader;
    }

    public Car(String brand, String clr, double speed, int lader) {
        super(brand, clr, speed);
        this.lader = lader;
    }

    public int getLader() {
        return lader;
    }

    public void setLader(int lader) {
        this.lader = lader;
    }
    public void run(){
        System.out.println(brand+"牌的"+clr+"色的汽车正以"+speed+"速度行驶"+"载人数为"+lader);
    }


}

public class text {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Vehicle v=new Vehicle("benz","black",200);
        v.setSpeed(200);
        v.run();
        Car c=new Car("Handa","red",200,5);
        c.setSpeed(200);
        c.run();
        
        

    }

}

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

    public Shape(String color) {
        super();
        this.color = color;
    }

    public Shape() {
        super();
    }

    public abstract void getArea();

    public abstract void getPer();

    public abstract void showAll();

}

public class Rectangle extends Shape{
    private double width;
    private double height;

    public Rectangle(String color, double width, double height) {
        super(color);
        this.width = width;
        this.height = height;
    }
    public void getArea() {
        area = width * height;
    }
    public void getPer() {
        per = (width + height) * 2;
    }

    public void showAll() {
        System.out.println("矩形的周长为：" + per + "   矩形的面积为：" + area);
    }

}

public class Circle extends Shape{

       private double radius;

        public Circle(String color, double radius) {
            super(color);
            this.radius = radius;
        }
        public void getArea() {
            area = 3.14 * radius * radius;
        }
        public void getPer() {
            per = 2 * 3.14 * radius;
        }
        public void showAll() {
            System.out.println("圆的周长为：" + per + "   圆的面积为：" + area);
        }

}

public class text {
    public static void main(String[] args) {
        Rectangle r = new Rectangle("蓝", 3.0, 6.0);
        Circle c = new Circle("红", 2.0);
        r.getArea();
        r.getPer();
        c.getArea();
        c.getPer();
        r.showAll();
        c.showAll();
    }
}