第十四周作业

package shier;

public class Vehicle {
    protected String brand;
    protected String color;
    protected double speed;
    public Vehicle(String brand, String color, double speed) {
        super();
        this.brand = brand;
        this.color = color;
        this.speed = 0;
    }
    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 String getBrand() {
        return brand;
    }
    public void run(){
        System.out.println("品牌是"+brand+",颜色是"+color+"的汽车,正在以"+speed+"速度奔跑");
    }
}

package shier;

public class Car extends Vehicle {
    int loader;
    public int getLoader() {
        return loader;
    }
    public void setLoader(int loader) {
        this.loader = loader;
    }
    public Car(String brand, String color, double speed, int loader) {
        super(brand, color, speed);
        this.loader = loader;
    }
    public void run(){
        System.out.println("品牌是"+super.getBrand()+",颜色是"+color+",载人数为"+loader+"的汽车,正在以"+speed+"速度奔跑");
    }
}

package shier;

public class TestVehicle {
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Vehicle v=new Vehicle("benz", "black", 120);
        v.setSpeed(120);
        v.run();
        Car c=new Car("Honda", "red", 100, 2);
        c.setSpeed(200);
        c.run();
    }
    
}

public abstract class Shape {
    double area;
    double per;
    char color;
     
    public Shape() {
        super();
    }
 
    public Shape(char color) {
        super();
        this.color = color;
    }
 
    public abstract double getPer();
 
    public abstract double getArea();
 
    public abstract void showAll();
 
    public char getColor() {
        return color;
    }
 
    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
         
 
    }
 
}

public class Circle extends Shape {
    double radius;
 
    public void showAll() {
        System.out.println("圆形的半径是" + radius + ",颜色是" + color + ",周长是"
                + getPer() + ",面积是" + getArea());
    }
 
    @Override
    public double getPer() {
 
        return 2 * 3.14 * radius;
    }
 
    @Override
    public double getArea() {
 
        return 3.14 * radius * radius;
    }
 
    public Circle(double radius, char color) {
        super();
        this.radius = radius;
        this.color = color;
    }
 
 
    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
 
    }
 
}

public class Rectangle extends Shape {
    public double getPer() {
        return (width + height) * 2;
    }
 
    public double getArea() {
        return width * height;
    }
 
    double width;
    double height;
 
    public Rectangle(double width, double height, char color) {
        super();
        this.width = width;
        this.height = height;
        this.color = color;
    }
 
    public Rectangle() {
        super();
    }
 
    public void showAll() {
        System.out.println("矩形的长是" + width);
        System.out.println("宽是" + height);
        System.out.println("颜色是" + color);
        System.out.println("周长是" + getPer());
        System.out.println("面积是" + getArea());
 
    }
 
    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
 
    }
 
}

public class Test {
    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
         Rectangle r = new Rectangle(7, 4, '白');
         r.showAll();
         Circle c = new Circle(6, '黑');
         c.showAll();
 
    }
 
}