接口综合应用案例

interface Function{
    void takePicture();
    void viewing();
}

abstract class Feature{
    private String name;
    private double price;
    public Feature(){   }
    public Feature(String name,double price){
        this.name=name;
        this.price=price;
    }

    public String getName(){
        return name;
    }

    public double getPrice(){
        return price;
    }

    abstract public String getInfo();
}

class Smartphone extends Feature implements Function{
    private String OS;
    public Smartphone(String name,double price,String os){
        super(name,price);
        this.OS=os;
    }

    public void takePicture(){
        System.out.println(this.getName()+"手机拍照！");
    }

    public void viewing(){
        System.out.println(this.getPrice()+"手机看照片！");
    }

    public String getInfo(){
        return"名称："+getName()+",价格"+getPrice()+",智能手机操作系统："+this.OS;
    }

    public void passmessage(String message){
        System.out.println(this.getName()+"智能手机发送了短信："+message);
    }
}

class Camera extends Feature implements Function{
    private double zoom;
    public Camera(String name,double price,double zoom){
        super(name,price);
        this.zoom=zoom;
    }

    public void takePicture(){
        System.out.println(this.getName()+"数码照相机照相！");
    }

    public void viewing(){
        System.out.println(this.getName()+"数码照相机浏览照片！");
    }

    public String getInfo(){
        return "名称："+this.getName()+",价格："+this.getPrice()+",数码相机的变焦倍数："+this.zoom;
    }

    public void printPhoto(){
        System.out.println(this.getName()+"数码相机打印照片！");
    }
}

class Demo0204{
    public static void main(String[] args) {
        Smartphone hw=new Smartphone("华为",5600,"鸿蒙");
        Camera ca=new Camera("佳能",3500,20);
        System.out.println("智能手机信息\n"+hw.getInfo());
        System.out.println("数码照相机信息\n"+ca.getInfo());
        hw.viewing();
        hw.takePicture();
        hw.passmessage("你好！");
        ca.printPhoto();
        ca.takePicture();
        ca.viewing();
    }
}